Like a painter, if he spends 6 days painting his masterpiece---afterwards he then does one more thing...he signs it with his signature...
So too did God, after 6 days of Creation, then signed His Creation with His signature-
So too did God, after 6 days of Creation, then signed His Creation with His signature-
And on the seventh day God ended his work which he had made; and he rested on the seventh day from all his work which he had made....But the seventh day is the sabbath of the LORD thy God:... For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
Genesis 2:2/Exodus 20:10,11