The fourth commandment, that directing the following of the Sabbath, is God’s proclamation that the seventh day of the week, Sunday, is to be kept solely for his worship; because:
And on the seventh day God ended his work which he had made; and he rested on the seventh day from all his work which he had made.
And God blessed the seventh day, and sanctified it: because that in it he had rested from all his work which God created and made.
This is not merely the celebration of the holy day as a day of rest, but this is the day that “as believers we enter into ‘rest’ – that is, we enter into His Sabbath; we enter into His perfect redemption.”
This commandment was followed by the Jews and then adopted by the early Christians, codified in the early Christian Church and in Roman Catholicism (the first Christian sect), modified still more by the advent of Protestantism, and later by the Presbyterians. As the different Christian religions began to assert their independence and autonomy, the manner in which the Sabbath was kept began to change. The difference between the Jewish celebration of the Sabbath as the seventh day and the Christian celebration of the same day is significant. In Judaism, the Sabbath is the seventh day of week while in Christianity; the Sabbath is moved and considered the first day of the week. “The first day of the week is not the Sabbath changed, but altogether a new day. It is the first day of a new period, and not the last day of the old.” The celebration of the Sabbath and manner in which the Sabbath changed during Christianity’s many conversions is the subject of this thesis.
 Anonymous, Genesis 2:1-3.
Vernon McGee, Thru The Bible(Nashville, Thomas Nelson Publishers, 1981); p.19.
 C.H. Mackintosh, Genesis to Deuteronomy(Neptune: Loizeaux Brothers, 1972). P. 24.