[Moderator]Let me remind everyone of the confessional position on the matter, from the WCF chapter 21: while questions and explanations are certainly welcome, arguments directed against this are not acceptable on the board:
Arguing for the rejection of any of these affirmations will result in deleted posts or infractions.[/Moderator]
Dabney's treatment, which can be found in a PDF called "The Christian Sabbath" at this page, is the second best treatment I've read.
VII. As it is of 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 hath particularly appointed one day in seven for a Sabbath, to be kept holy unto him: 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, which in Scripture is called the Lord's Day, and is to be continued to the end of the world as the Christian Sabbath.
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; 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.
Arguing for the rejection of any of these affirmations will result in deleted posts or infractions.[/Moderator]
Dabney's treatment, which can be found in a PDF called "The Christian Sabbath" at this page, is the second best treatment I've read.