Depends whos version of history you believe. The Roman Catholic Church or someone unbiased.
The term changing the Sabbath is just a play on words that no one is talking about as Sunday has never been God's Sabbath. It is SIN and breaking God's 4th Commandments that is the topic of discussion.
The Roman Catholic Church adopted the pagan day of Sunworship from pagan Rome introduced by the Roman Emperor Constantine in AD 321 and made it official in the mother Church at the council of Laodecea in AD 363 in place of God's 4th Commandment Sabbath (Exodus 20:8-11).
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CANON XXIX.
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. (
The Council of Laodecea in Phrygia Pacatiana 364 A.D.)
Yep sounds pretty official to me don't you think?
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Sunday Worship linked (wiki)
On 7 March 321,
Constantine I, Rome's first Christian Emperor (see
Constantine I and Christianity), decreed that Sunday would be observed as the Roman day of rest:
[10]
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 vine-planting; lest by neglecting the proper moment for such operations the bounty of heaven should be lost.
[11]
Despite the official adoption of Sunday as a day of rest by Constantine, the seven-day week and the nundial cycle continued to be used side-by-side until at least the
Calendar of 354 and probably later.
[12]
In 363-4, Canon 29 of the Council of Laodicea prohibited observance of the Jewish Sabbath (Saturday), and encouraged Christians to work on the Saturday and rest on the Lord's Day (Sunday).[13] The fact that the canon had to be issued at all is an indication that adoption of Constantine's decree of 321 was still not universal, not even among Christians. It also indicates that Jews were observing the Sabbath on the Saturday.
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Who has the right to change God's 4th Commandment of the 10 Commandments to a pagen day of Sun worship? Sunday is not the LORD'S day, it never has been.
The Sabbath is the LORD'S day SCRIPTURE SUPPORT linked CLICK ME.
As a Protestant somthing to protest about in my view as God's 10 Commandments give us the knowledge of what sin is if broken (Romans 3:20; 7:7; James 2:11; 1 John 3:4). Sin will keep all those who KNOWINGLY practice it out of God's Kingdom (Hebrews 10:26-27).
There is not a single scripture that supports anything you have posted above. Only God's WORD is true and we should believe and follow it over the teachings and traditions of men that break the commandments of God.
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CLAIMS OF THE ROMAN CATHOLIC CHURCH
“Question. – Have you any other way of proving that the Church has power to institute festivals of precept? Ans. – Had she not such power, she could not have done that in which all modern religionists agree with her;-she could not have substituted the observance of Sunday the first day of the week, for the observance of Saturday the seventh day, a change for which there is no Scriptural authority.”- (Stephen Keenan, A Doctrinal Cathechism, p. 174)
“The fact, however, that Christ until His death, and His Apostles at least for sometime after Christ’s Ascension, observed the Sabbath is evidence enough that our Lord Himself did not substitute the Lord’s day for the Sabbath during His lifetime on earth.” – (Vincent J, Kelly - Catholic, Forbidden Sunday and Feast-Day Occupations 1943 ed. pp. 19& 29)
“The Catholic Church…by virtue of her divine mission, changed the day from Saturday to Sunday.” – (The Catholic Mirror, Cardinal Gibbons, Sep. 23, 1893)
“We observe Sunday instead of Saturday because the Catholic Church transferred the solemnity from Saturday to Sunday.” – (Peter Geirmann, the Convert’s Catechism of Catholic Doctrine. 1946 ed.)
“You may read the Bible from Genesis to Revelation and you will not find a single line authorizing the sanctification of Sunday. The Scriptures enforce the religious observance of Saturday, a day which we never sanctify.” – (James Cardinal Gibbons, The Faith of Our Fathers. 1917 ed. P. 72,73.)
“Nowhere in the Bible is it stated that worship should be changed from Saturday to Sunday. The fact is that the Church in existence for several centuries before the Bible was given to the world. The Church made the Bible, the Bible did not make the Church. Now the Chruch …instituted, by the same divine authority, taught the doctrine of Purgatory long before the Bible was made. We have therefore, the same authority for Purgatory as we have for Sunday.” – (Martin L. Scott, Things Catholics Are Asked About, 1927 ed. p.136
“If we consulted the Bible only, we should still have to keep holy the Sabbath day, that is, Saturday.” – (John Laux, A Course in Religion for Catholic High Schools and Adademies, Vol. 1, 1936 ed)
“Some theologians have held that God likewise directly determined the Sunday as the day of worship in the New Law, that He Himself has explicitly substituted the Sunday for the Sabbath. But this theory is now entirely abandoned. It is now commonly held that God simply gave His Church the power to set aside whatever day or days, she would deem suitable as Holy Days. The Church chose Sunday, the first day of the week, and in the course of time added other days, as holy days.” – (Vincent J. Kelly (Catholic), Forbidden Sunday and Feast-Day Occupations, 1943 ed. p.2)
“And where are we told in the Scriptures that we are to keep the first day at all? We are commanded to keep the seventh, but we are nowhere commanded to keep the first day…The reasons why we keep the first day of the week holy instead of the seventh is for the same reason that we observe many other things, not because the Bible, but because the church, has enjoined it.” – (Isaac Williams (Anglican), Plain Sermons on the Catachism, Vol. 1, pp.334, 336.)
“The church, after changing the day of rest from the Jewish Sabbath of the seventh day of the week to the first made the Third Commandment refer to Sunday as the day to be kept holy as the Lord's Day.” (V 4, p 153 - The Catholic Encyclopedia.)
“If Protestants would follow the Bible, they would worship God on the Sabbath Day. In keeping the Sunday they are following a law of the Catholic Church.” – (Albert Smith, chancellor of the Archdiocese of Baltimore, replying for the Cardinal in a letter of Feb. 10, 1920)
“All things whatsoever that were prescribed for the [Bible] Sabbath, we have transferred them to the Lord's day, as being more authoritative and more highly regarded and first in rank, and more honorable than the Jewish Sabbath”. (Quoted in J. P. Migne's "Patrologie p 23, 1169-1172)
“We all gather on the day of the sun, for it is the first day [after the Jewish Sabbath, but also the first day] when God, separating matter from darkness, when he made the world; and on this same day Jesus Christ our Savior rose from the dead.” (St. Justin, I Apologia.67
G6,429 and 432).
“Those who lived according to the old order of things have come to a new hope, no longer keeping the Sabbath, but the Lord's Day, in which our life is blessed by him and by his death.” (St. Ignatius of Antioch, Ad Magn. 9,1:SCh 10,88.) – (Interesting reasoning, but He rested in the tomb on the Sabbath, His day, the Lords day, the day He blessed, hallowed and sanctified, and rose on the first day.)
Hope this helps