Zacharia Hildreth
How Did the Original Church Change?
"Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ." — Colossians 2:8, KJV
In our first article, we saw what the original Christians looked like: a teaching, Sabbath-keeping, Bible-testing, house-gathering people, devoted to the apostles' doctrine and the soon return of their Lord.
So here is the question that history forces upon every honest believer: if the first-century church worshipped on the seventh-day Sabbath, baptized believers by immersion, met in homes, and lived by Scripture alone — why do most churches today do none of those things?
The answer is not hidden. It is one of the best-documented stories in all of church history. It involves an emperor, a civil law, a church council, and an anathema. And most remarkably of all — the Bible predicted it centuries in advance.
Let us trace it carefully. You deserve sources, not slogans.
First: The Bible Never Changed the Day
Before we look at history, we must establish the most important fact in this entire study: there is no command anywhere in Scripture — from Genesis to Revelation — transferring sacredness from the seventh day to the first.
The Sabbath commandment itself is part of the law God spoke with His own voice and wrote with His own finger on stone (Exodus 20:8-11; 31:18). It points back to creation, not to Israel:
"And God blessed the seventh day, and sanctified it." — Genesis 2:3, KJV — spoken in Eden, more than two thousand years before a Jew existed.
Jesus — who called Himself "Lord also of the sabbath" (Mark 2:28, KJV) — explicitly denied that He had come to change the law:
"Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil. For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled." — Matthew 5:17-18, KJV
And His followers' conduct after the cross proves they understood Him literally. The women who had followed Jesus "rested the sabbath day according to the commandment" (Luke 23:56, KJV) — written by Luke decades after the resurrection, still calling the seventh day the commandment. Jesus, prophesying the destruction of Jerusalem in AD 70 — nearly forty years after His ascension — told His disciples to pray that their flight would not come "on the sabbath day" (Matthew 24:20, KJV). He expected His church to be honoring the Sabbath long after the cross.
In the book of Acts, Paul's eighteen months in Corinth, where he preached "every sabbath" to "the Jews and the Greeks" (Acts 18:4, 11, KJV), imply more than seventy Sabbath gatherings in that one city alone.
By contrast, the first day of the week is mentioned only eight times in the New Testament (Matthew 28:1; Mark 16:1, 2, 9; Luke 24:1; John 20:1, 19; Acts 20:7; 1 Corinthians 16:2) — and not one of those passages contains a command, a blessing, a title of honor, or any hint of a new holy day.
The change did not come from Scripture. So where did it come from?
The Slow Drift: AD 100–300
The apostle Paul warned the Ephesian elders that the corruption would arise from within:
"For I know this, that after my departing shall grievous wolves enter in among you, not sparing the flock. Also of your own selves shall men arise, speaking perverse things, to draw away disciples after them." — Acts 20:29-30, KJV
And to the Thessalonians he wrote that the process had already begun:
"Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition... For the mystery of iniquity doth already work." — 2 Thessalonians 2:3, 7, KJV
The documentary trail of that falling away begins surprisingly early — and, significantly, in specific places.
- c. AD 110 — Ignatius of Antioch, in his letter to the Magnesians (ch. 9), speaks of those "no longer observing the Sabbath, but living according to the Lord's day." It is one of the earliest hints of the new vocabulary.
- c. AD 130 — The Epistle of Barnabas (ch. 15) spiritualizes the Sabbath and argues for "the eighth day" as a new celebration.
- c. AD 155 — Justin Martyr, writing in Rome, gives the first clear description of a Sunday gathering: "And on the day called Sunday, all who live in cities or in the country gather together to one place..." (First Apology, ch. 67). His reasons are telling — not a command of God, but that God made light on the first day and that Jesus rose on it.
Notice where this pressure came from. After the failed Bar Kokhba revolt (AD 132–135), the Emperor Hadrian crushed Judea, banned Jewish practices including Sabbath-keeping, and rebuilt Jerusalem as a pagan city. Anything that looked "Jewish" became socially and politically dangerous in the Roman world. A growing, largely Gentile church, eager to distance itself from Judaism, found it convenient to emphasize a different day. It was a human solution to a human problem — tradition stepping in where Scripture had not spoken.
Yet even through this period, the drift was partial and regional. The decisive acceleration came with an emperor.
The Emperor Steps In: Constantine
The Setting
In AD 313, Constantine and Licinius issued the Edict of Milan, granting legal toleration to Christianity — a genuine mercy after centuries of persecution. But Constantine was a shrewd statesman before he was anything else. He retained the pagan title Pontifex Maximus — chief priest of Roman paganism. His coins continued to honor Sol Invictus, "the Unconquered Sun," his patron deity, well into the 320s. He was not baptized until he lay dying in AD 337.
Constantine saw in the church a tool for unifying a fracturing empire. But unity requires a single, shared day of worship — and the empire already had one beloved by pagans and convenient for many Christians: the day of the sun.
The Law of March 7, AD 321
The first Sunday law in history was not issued by a church. It was issued by the Roman state, and it is preserved in the Codex Justinianus (3.12.3) to this day:
"On the venerable Day of the Sun let the magistrates and people residing in cities rest, and let all workshops be closed. In the country, however, persons engaged in agriculture may freely and lawfully continue their pursuits; because it often happens that another day is not so suitable for grain-sowing or for vine-planting; lest by neglecting the proper moment for such operations the bounty of heaven should be lost." — Emperor Constantine, March 7, AD 321 (trans. Philip Schaff, History of the Christian Church, vol. 3, p. 380, note)
Read it carefully. The day is named not "the Lord's day," not "the Christian Sabbath," but by its old pagan title: the venerable day of the Sun — dies Solis. There is no reference to the fourth commandment. No reference to the resurrection. As the historian Philip Schaff (no friend of the Sabbath position) concedes, the law was framed so that it "was as applicable to the worshippers of Hercules, Apollo, and Mithras, as to the Christians."
And the very next day — March 8, AD 321 — Constantine issued another edict, this one regulating the pagan practice of consulting soothsayers (haruspices) when lightning struck public buildings (Codex Theodosianus 16.10.1). The Sunday law stands in its context: the policy of a sun-honoring emperor, not a command of God.
The Council of Nicaea: AD 325
Four years later, Constantine convened the Council of Nicaea. Its famous creed is outside our scope here, but one of its lesser-known decisions reveals the spirit driving the change: the council, backed by the emperor, formally separated the celebration of Easter from the biblical Passover. Constantine's own letter on the decision, preserved by the church historian Eusebius (Life of Constantine 3.18), states the motive with shocking plainness:
"It appeared an unworthy thing that in the celebration of this most holy feast we should follow the practice of the Jews... Let us then have nothing in common with the detestable Jewish crowd." — Constantine, AD 325
Pause on that sentence. The stated reason for altering Christian practice was not Scripture — it was contempt for the Jews. When a church changes its worship to avoid resembling the people through whom "salvation" came (John 4:22), it has left the apostolic rails.
The Admission of Eusebius: c. AD 330
Eusebius, bishop of Caesarea — Constantine's admirer, court theologian, and the father of church history — knew exactly who had made the transfer, and he said so:
"All things whatsoever that it was duty to do on the Sabbath, these we have transferred to the Lord's day, as more appropriately belonging to it, because it has precedence, and is first in rank, and more honorable than the Jewish Sabbath." — Eusebius, Commentary on the Psalms (on Psalm 92), c. AD 330 (Migne, Patrologia Graeca, vol. 23, cols. 1171–1172)
Notice the pronoun: "these we have transferred." Not "Christ transferred." Not "the apostles transferred." We — the fourth-century church and its emperor. It is one of the most candid confessions in all of Christian literature, hiding in plain sight.
The Council of Laodicea: The Anathema
By the mid-fourth century, large numbers of ordinary Christians were still keeping the seventh-day Sabbath — and the institutional church decided to stop persuading and start condemning.
The Synod of Laodicea in Phrygia (dated by scholars between AD 343 and 381, most often c. AD 363–364) issued sixty canons. Canon 29 reads:
"Christians must not judaize by resting on the Sabbath, but must work on that day, rather honouring the Lord's Day; and, if they can, resting then as Christians. But if any shall be found to be judaizers, let them be anathema from Christ." — Council of Laodicea, Canon 29
Consider what this canon proves — ironically, against its own intention:
- Sabbath-keeping was still widespread among Christians in the mid-300s. You do not pass a law against something nobody is doing.
- The church acknowledged it was requiring work on the seventh day — the exact opposite of the fourth commandment.
- The weapon chosen was anathema — a formal curse. Tradition was now enforced by condemnation, the very thing Paul forbade (Colossians 2:16).
The Historians' Window: What the Church Was Still Doing in AD 450
Here is the fact that surprises most readers. Even a century after Laodicea, the majority of the Christian world still honored the seventh day. Two independent church historians, writing around AD 439–450, tell us the real state of affairs.
Socrates Scholasticus, in his Ecclesiastical History (5.22), records:
"For although almost all the churches throughout the world celebrate the sacred mysteries on the Sabbath of every week, yet the Christians of Alexandria and at Rome, on account of some ancient tradition, have ceased to do this."
Sozomen, his contemporary, confirms it (Ecclesiastical History 7.19):
"The people of Constantinople, and almost everywhere, assemble together on the Sabbath, as well as on the first day of the week, which custom is never observed at Rome or at Alexandria."
Read those testimonies again. In the mid-fifth century — more than four hundred years after the resurrection — almost all the churches throughout the world still observed the seventh-day Sabbath. The two great exceptions were Rome and Alexandria — the very two centers where Sunday observance had been promoted earliest, and Rome was the seat that would grow into the medieval papacy. And note Socrates' own explanation for Rome's departure: not a commandment of Christ — "some ancient tradition."
There it stands, from the pen of an orthodox fifth-century church historian: the change was a tradition of men, centered in Rome, resisted for centuries by most of the Christian world.
The Prophecy That Foretold It All
None of this took God by surprise. Six centuries before Constantine, the prophet Daniel was shown a power that would arise out of the Roman Empire — a "little horn" (Daniel 7:8) that would persecute the saints and attempt the unthinkable:
"And he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: and they shall be given into his hand until a time and times and the dividing of time." — Daniel 7:25, KJV
Of the Ten Commandments, only one is both a time and a law: the fourth. "Remember the sabbath day, to keep it holy... the seventh day is the sabbath of the LORD thy God" (Exodus 20:8-10, KJV). A human system would arise that would "think to change" — would presume to alter — the very commandment that declares who God is: the Creator of heaven and earth (Exodus 20:11).
Paul saw the same apostasy: a "falling away" first, then a "man of sin... who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God" (2 Thessalonians 2:3-4, KJV) — a power within the church claiming authority that belongs to God alone. And John, in Revelation, describes God's end-time people with a double identification mark that only makes sense in this exact historical context:
"Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus." — Revelation 14:12, KJV
The commandments of God — all ten, including the one nearly everyone forgot — and the faith of Jesus. That is the profile of the original church, restored in the last days.
"But Doesn't the New Testament Authorize Sunday?"
Fair question — the Berean question (Acts 17:11). Let us take the standard texts honestly.
- The resurrection texts (Matthew 28:1; Mark 16:1-2, 9; Luke 24:1; John 20:1, 19). Yes, Jesus rose on the first day — a glorious fact we celebrate. But the disciples gathered that evening "for fear of the Jews" (John 20:19), not to worship; they did not even believe He was risen (Mark 16:11-14). No resurrection text calls the day holy or commands its observance. God already gave a memorial of the death, burial, and resurrection of Christ: baptism (Romans 6:3-5). And a memorial of His death: the Lord's Supper (1 Corinthians 11:24-26). He never asked for a new weekly day.
- Acts 20:7 — At Troas, disciples broke bread "upon the first day of the week" as Paul preached until midnight. By Bible reckoning days begin at sunset (Genesis 1:5; Leviticus 23:32), so this was a Saturday-night farewell meeting — and breaking bread happened daily in that era (Acts 2:46). No example, no command of recurring worship.
- 1 Corinthians 16:2 — "Let every one of you lay by him in store" — a private, at-home setting-aside of famine-relief funds for Jerusalem, precisely so no collections would be needed when Paul arrived. It says nothing of a worship service.
- Colossians 2:16 — "Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days: which are a shadow of things to come." The "sabbaths" bundled here with meat offerings, drink offerings, feast days, and new moons are the annual ceremonial sabbaths of Leviticus 23 — shadows pointing forward to Christ, which met their fulfillment at the cross. The weekly Sabbath of the fourth commandment is not a shadow pointing forward; it is a memorial pointing backward to creation (Genesis 2:3; Exodus 20:11) — made before sin, before Jews, before shadows.
- Romans 14:5 — The chapter is about eating, fasting, and personal scruples (14:2-3, 6); the Sabbath commandment is never in view. Conscience texts cannot repeal commandments.
- Revelation 1:10 — John was in the Spirit "on the Lord's day." Which day does the Lord call His? "If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day" (Isaiah 58:13, KJV). "The Son of man is Lord also of the sabbath" (Mark 2:28, KJV). The Lord has a day — and He Himself tells us which one it is.
The verdict of Scripture is unanimous: the seventh day is the Sabbath of the Lord — before the cross, at the cross, after the cross, in the early church, and in the world to come, where "from one sabbath to another, shall all flesh come to worship before me, saith the LORD" (Isaiah 66:23, KJV). "There remaineth therefore a rest" — the Greek word is sabbatismos, a keeping of Sabbath — "to the people of God" (Hebrews 4:9, KJV).
Timeline of the Change
| Date | Event |
|---|---|
| Creation | God blesses and sanctifies the seventh day (Genesis 2:3) |
| AD 27–31 | Jesus keeps the Sabbath "as his custom was" (Luke 4:16) |
| AD 31 | After the crucifixion, the women rest "the sabbath day according to the commandment" (Luke 23:56) |
| AD 31–66 | The apostles — including Paul among Gentiles — preach on the Sabbath throughout Acts (13:42-44; 16:13; 17:2; 18:4) |
| c. AD 110 | Ignatius uses new "Lord's day" vocabulary (Magnesians 9) |
| c. AD 130 | Barnabas spiritualizes the Sabbath, promotes an "eighth day" (ch. 15) |
| AD 132–135 | Bar Kokhba revolt crushed; Rome suppresses everything Jewish |
| c. AD 155 | Justin Martyr describes Sunday gathering — in Rome (First Apology 67) |
| AD 313 | Edict of Milan legalizes Christianity |
| AD 321, Mar. 7 | Constantine's Sunday law: rest on "the venerable day of the Sun" |
| AD 325 | Nicaea severs Easter from Passover — "nothing in common with the detestable Jewish crowd" |
| c. AD 330 | Eusebius: "these we have transferred to the Lord's day" |
| c. AD 363–364 | Laodicea, Canon 29: work on the Sabbath; anathema on "judaizers" |
| c. AD 440–450 | Socrates and Sozomen: almost all churches worldwide still keep the Sabbath — except Rome and Alexandria |
Why This Matters
This is not an argument about a day on a calendar. It is an argument about authority.
Every other commandment of the ten can be found reinforced by nearly all professing Christians. Only one has been swapped out — and swapped not by a "Thus saith the Lord," but by an emperor's civil law, a council's canon, and a historian's frank "we have transferred." The question is the one Elijah posed on Carmel: "How long halt ye between two opinions? if the LORD be God, follow him: but if Baal, then follow him" (1 Kings 18:21, KJV) — the one issue is whose word we will follow.
Jesus put it in the plainest terms He ever used about tradition:
"But in vain they do worship me, teaching for doctrines the commandments of men... Thus have ye made the commandment of God of none effect by your tradition." — Matthew 15:9, 6, KJV
The good news is that the story does not end in apostasy. God's promise for the last days is a restoration — a people who rebuild exactly where the breach was made:
"And they that shall be of thee shall build the old waste places: thou shalt raise up the foundations of many generations; and thou shalt be called, The repairer of the breach, The restorer of paths to dwell in. If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the LORD, honourable..." — Isaiah 58:12-13, KJV
The original Christians kept the Sabbath. The Scriptures never changed it. History shows exactly who claimed to. And prophecy shows a final generation who, like Antioch, will simply take God at His word.
Study Questions
- Read Exodus 20:8-11. What reason does the fourth commandment itself give for the Sabbath — and what would have to happen for that reason to expire?
- Why is it significant that Constantine's law called the day "the venerable day of the Sun" rather than "the Lord's day"?
- Read Daniel 7:25 and 2 Thessalonians 2:3-7. What did God reveal in advance about attempts to change His law — and what does that tell us about how He views the change?
- Socrates says Rome and Alexandria dropped the Sabbath "on account of some ancient tradition." Compare Matthew 15:3, 6, 9. How does Jesus weigh tradition against commandment?
- Read Isaiah 58:12-14. What does "the breach" appear to be, and what is promised to those who repair it?
Scripture Index
Genesis 1:5; 2:3 · Exodus 20:8-11; 31:18 · Leviticus 23:32 · 1 Kings 18:21 · Isaiah 58:12-14; 66:22-23 · Daniel 7:8, 25 · Matthew 5:17-18; 15:3, 6, 9; 24:20; 28:1 · Mark 2:27-28; 16:1-2, 9, 11-14 · Luke 4:16; 23:56; 24:1 · John 4:22; 20:1, 19 · Acts 2:46; 13:42-44; 16:13; 17:2, 11; 18:4, 11; 20:7, 29-30 · Romans 6:3-5; 14:2-6 · 1 Corinthians 11:24-26; 16:2 · Galatians 4:10 · Colossians 2:8, 14, 16-17 · 2 Thessalonians 2:3-4, 7 · Hebrews 4:9 · Revelation 1:10; 14:12
Historical Sources
- Codex Justinianus 3.12.3 — Constantine's Sunday law, March 7, AD 321 (trans. P. Schaff, History of the Christian Church, vol. 3, p. 380, note 1)
- Codex Theodosianus 16.10.1 — Constantine's edict on haruspices, March 8, AD 321
- Eusebius, Life of Constantine 3.18 — Constantine's Easter letter, AD 325
- Eusebius, Commentary on the Psalms (on Ps. 92), c. AD 330 — "we have transferred" (Migne, PG 23:1171–1172)
- Synod of Laodicea, Canon 29, c. AD 363–364 (Nicene and Post-Nicene Fathers, Ser. II, vol. 14)
- Socrates Scholasticus, Ecclesiastical History 5.22, c. AD 439
- Sozomen, Ecclesiastical History 7.19, c. AD 440–450
- Ignatius of Antioch, To the Magnesians 9, c. AD 110
- Epistle of Barnabas 15, c. AD 130
- Justin Martyr, First Apology 67, c. AD 155
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