First of all I agree with all of that except for the "Now who claimed that the Sabbath was moved to the first day?" statement.
Baptist Confession of Faith ---
The Baptist Confession of Faith (1689)
22. Worship and the Sabbath Day
1. The light of nature shows that there is a God Who has lordship and sovereignty over all, is just and good, and Who does good to all. Therefore He is to be feared, loved, praised, called upon, trusted in, and served, with all the heart and all the soul, and with all the might
. But the acceptable way of worshipping the true God has been instituted by Himself, and therefore our method of worship is limited by His own revealed will.
He may not be worshipped according to the imagination and devices of men, nor the suggestions of Satan. He may not be worshipped by way of visible representations, or by any other way not prescribed in the Holy Scriptures.
7. As it is the law of nature that in general
a proportion of time, by God's appointment, should be set apart for the worship of God, so He has
given in His Word a positive, moral and perpetual commandment,
binding upon all men, in all ages to this effect. He has particularl
y appointed one day in seven for a Sabbath to be kept holy for Him.
From the beginning of the world to the resurrection of Christ this was the last day of the week, and
from the resurrection of Christ it was changed to the
first day of the week and called the Lord's Day. This is to be continued until the end of the world
as the Christian Sabbath, the observation of the last day of the week having been abolished.
8.
The Sabbath is kept holy to the Lord by those who, after the necessary preparation of their hearts and prior arranging of their common affairs,
observe all day a holy rest from their own works, words and thoughts about their worldly employment and recreations, and give themselves over to the public and private acts of worship for the whole time, and to carrying out duties of necessity and mercy.
=======================================
Westminster Confession of Faith
Chapter XXI
Of Religious Worship, and the Sabbath Day
I. The light of nature shows that there is a God, who has lordship and sovereignty over all, is good, and does good unto all, and is therefore to be feared, loved, praised, called upon, trusted in, and served, with all the heart, and with all the soul, and with all the might.
[1] But the acceptable way of worshipping the true God is instituted by Himself, and so limited by His own revealed will, that He may not be worshipped according to the imaginations and devices of men, or the suggestions of Satan, under any visible representation, or any other way not prescribed in the holy Scripture.
[2]
VII. As it is the law of nature, that, in general, a due proportion of time be set apart for the worship of God;
so, in His Word, by a positive, moral, and perpetual commandment binding all men in all ages, He has particularly appointed one day in seven, for a
Sabbath, to be kept holy unto him:
[34] which,
from the beginning of the world to the resurrection of Christ, was the last day of the week: and,
from the resurrection of Christ,
was changed into the first day of the week,
[35] which, in Scripture, is called the Lord's Day,
[36] and is to be continued to the end of the world, as the Christian Sabbath.
[37]
VIII.
This Sabbath is to be kept holy unto the Lord when men, after a due preparing of their hearts, and ordering of their common affairs beforehand, do not only observe an holy rest all the day from their own works, words, and thoughts about their worldly employments and recreations,
[38] but also are taken up the whole time in the public and private exercises of His worship, and in the duties of necessity and mercy.
[39]
============================== Roman Catholic
The Faith Explained (an RC commentary on the Baltimore catechism post Vatican II) states on Page 242 that
changing the Lord's day to Sunday was in the power of the church since "in the gospels ..Jesus confers upon his church the power to make laws in his name".
page 243
quote "
nothing is said in the bible about the change of the Lord's day from Saturday to Sunday.
We know of the change only from the tradition of the Church - a fact handed down to us...that is why we find so illogical the attitude of many Non-Catholics, who say that they will believe nothing unless they can find it in the bible and
Yet will continue to keep Sunday as the Lord's day on the say-so of the Catholic church"
=======================. (from "The Faith Explained" page 243.))
"
we know that in the o.t it was the seventh day of the week -
the Sabbath day - which was
observed as the Lord's day. that was
the law as God gave it...'remember to keep holy the Sabbath day.. the early Christian church determined as the Lord's day the first day of the week. That the church had the right to make such a law is evident...
The reason for changing the Lord's day from Saturday to Sunday lies in the fact that to the Christian church the first day of the week had been made double holy...
nothing is said in the bible about the change of the Lord's day from Saturday to Sunday..that is why we find so illogical the attitude of many non-Catholic who say they will believe nothing unless they can find it in the bible and yet will continue to keep Sunday as the Lord's day on the say-so of the Catholic church