John Gills Exposition of the Bible Commentary - Exodus 31:18
And he gave unto Moses, when he had made an end of communing with him on Mount Sinai ,.... After all those laws, orders, and instructions before related, which having done, he ceased to converse with him any longer in that manner he had, and at parting gave him two tables of testimony ; the two tables of the law, which is a testimony of the will of God, and contained the duty of the Israelites both towards God and man, and are reducible to these two, love to God, and love to our... read more
Matthew Henry's Complete Commentary - Exodus 31:12-18
Here is, I. A strict command for the sanctification of the sabbath day, Exod. 31:13-17. The law of the sabbath had been given them before any other law, by was of preparation (Exod. 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 (Exod. 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... read more