Do you have information on the changing of the Sabbath Day by Constantine?

I have no information on this because it never happened. One
of the most persistent false claims about the early history of the church
is that somehow Constantine was able to change Christian doctrine of even
the scriptures of the New Testament. Such rumors center on the council of
Nicea which was called together by Constantine in AD 325 in order to
attempt to settle the Arian controversy.

It is true that Constantine was the first Roman emperor to
accept and even to encourage Christianity. It is also true that, in order
to bring about peace amongst the Christian churches, he called together
the bishops of the entire Christian world (although mostly bishops from
the Eastern churches attended) to the first official council in the city
of Nicea in Asia Minor. This council, under Constantine’s encouragement,
dealt successfully with the Arian heresy, (with its doctrine that Jesus
was a created being) producing the now-famous Nicene Creed. The fact is,
however, that Constantine was not a Christian at this time. There is some
question about whether or not he became a convert at the very end of his
life. Constantine continued to practice pagan ceremonies throughout his
time as emperor.

Bottom line, there is not a shred of evidence that Constantine
changed Christian doctrine in any way or that he was able to somehow
convince the council of bishops to change the Bible. Every single piece
of evidence we have, including biblical passages and hundreds of
references by dozens of early church fathers proves beyond a doubt that
from its very earliest days, the disciples of Jesus met on the first day
of the week, Sunday. Some have referred to examples of Paul meeting with
Jews in the synagogues in Acts as proof that the early church met on the
Jewish Sabbath, Saturday. In fact these references prove the exact
opposite. The accounts in Acts prove that Paul would visit the Jewish
Synagogues on the Sabbath because that is when they came together.
However, Paul always met with the disciples on Sunday. The testimony of
the early church fathers, from the end of the first century onwards is
completely unanimous in testifying that the church came together to share
the Lord’s Supper on Sundays.

The fact is that Christianity does not have a Sabbath day.
Colossians 2:11-19 clearly teaches that the Old Testament law was nailed
to the cross with Jesus, so that those who are in Christ are no longer
bound by the law. Verse 16 clearly states that no follower of Jesus
should judge or be judged by observance of a Sabbath. Sunday was never a
Sabbath for the early church, but was a celebration of the death, burial
and resurrection of Jesus.

Those who would claim that Constantine could have somehow
changed the Sabbath will often imply that he also changed the New
Testament. Again, on this count, there is not even the least shred of
evidence in support of the charge. We have dozens of manuscripts of the
New Testament from this time period and before. Not a single one of these
manuscripts can be used to support claims of any significant change in the
New Testament by anyone, never mind by Constantine, a man who was not even
a Christian. The idea that Constantine changed Christian doctrine was
born out of wishful thinking by certain groups who want to be able to
claim that their particular false doctrine has ancient roots in
scripture. When a particular doctrine is not well supported by scripture,
a common tactic has been to claim that the Bible was changed by early
Christians to excise the passages which supposedly supported the
doctrine. The problem with such a theory is that is only of value when
actual evidence supporting it is brought forth. In the case of early
Sabbath worship of Christians, such evidence is completely lacking.

John Oakes