“Fourth, the mind of God in this matter is clearly revealed in the fourth commandment. The will of God is there revealed, not only that the Israelitish nation, but that all nations, should keep every seventh day holy, or which is the same thing, one day after every six. This command, as well as the rest, is doubtless everlasting and of perpetual obligation, at least as to the substance of it, as is intimated by its being engraven on the tables of stone. Nor is it to be thought that Christ ever abolished any command of the ten, but that there is the complete number ten yet, and will be to the end of the world.
Some say, that the fourth command is perpetual, but not in its literal sense: not as designing any particular proportion of time to be set apart and devoted to literal rest and religious exercises. They say that it stands in force only in a mystical sense, viz. as that weekly rest of the Jews typified spiritual rest in the Christian church, and that we under the gospel are not to make any distinction of one day from another, but are to keep all time holy, doing everything in a spiritual manner.
But this is an absurd way of interpreting the command, as it refers to Christians. For if the command be so far abolished, it is entirely abolished. For it is the very design of the command, to fix the time of worship. The first command fixes the object, the second the means, the third the manner, the fourth the time. And if it stands in force now only as signifying a spiritual, Christian rest, and holy behavior at all times, it does not remain as one of the ten commands, but as a summary of all the commands.”
~Jonathan Edwards, “The Perpetuity and Change of the Sabbath”
Source and read more: http://www.biblebb.com/files/edwards/sabbath.htm