Q. 68. What are the reasons annexed to the fourth commandment?
A. The reasons annexed to the fourth commandment are, God’s allowing us six days of the week for our own employments, His challenging a special propriety in the seventh, His own example and His blessing the Sabbath day.
“Six days you shall work, but on the seventh day you shall rest. In plowing time and in harvest you shall rest.”
Therefore the people of Israel shall keep the Sabbath, observing the Sabbath throughout their generations, as a covenant forever. It is a sign forever between me and the people of Israel that in six days the Lord made heaven and earth, and on the seventh day he rested and was refreshed. ’”
And on the seventh day God finished his work that he had done, and he rested on the seventh day from all his work that he had done. So God blessed the seventh day and made it holy, because on it God rested from all his work that he had done in creation.