Matthew Henry on Exodus 31:12–end
Here is, I. A strict command for the sanctification of the sabbath day, Exo 31:13-17. The law of the sabbath had been given them before any other law, by was of preparation (Exo 16:23); it had been inserted in the body of the moral law, in the fourth commandment; it had been annexed to the judicial law (Exo 23:12); and here it is added to the first part of the ceremonial law, because the observance of the sabbath is indeed the hem and hedge of the whole law; where no conscience is made of that, farewell both godliness and honesty; for, in the moral law, it stands in the midst between the two tables. Some suggest that it comes in here upon another account. Orders were now given that a taberna…
Read the whole note in the consoleJamieson-Fausset-Brown on Exodus 31:12
Verily my sabbaths ye shall keep--The reason for the fresh inculcation of the fourth commandment at this particular period was, that the great ardor and eagerness, with which all classes betook themselves to the construction of the tabernacle, exposed them to the temptation of encroaching on the sanctity of the appointed day of rest. They might suppose that the erection of the tabernacle was a sacred work, and that it would be a high merit, an acceptable tribute, to prosecute the undertaking without the interruption of a day's repose; and therefore the caution here given, at the commencement of the undertaking, was a seasonable admonition.
Adam Clarke on Exodus 31:16
A perpetual covenant - Because it is a sign of this future rest and blessedness, therefore the religious observance of it must be perpetually kept up. The type must continue in force till the antitype come.
John Gill on Exodus 31:16
Wherefore the children of Israel shall keep the sabbath,.... On whom the sabbath of the seventh day was only enjoined, as well as that of the seventh and of the fiftieth years, being all ceremonial and shadowy:
to observe the sabbath throughout their generations; so long as the Mosaic dispensation lasted, and their civil polity and church state continued, even until the Messiah came, when all those Jewish shadows, rites, and ceremonies, fled away and disappeared:
for a perpetual covenant; just in the same sense as circumcision was, Genesis 17:13.