Genesis 2:2-3

Amplified Bible

² And by the seventh day God completed His work which He had done, and He rested (ceased) on the seventh day from all His work which He had done.^{(A) 3} So God blessed the seventh day and sanctified it [as His own, that is, set it apart as holy from other days], because in it He rested from all His work which He had created and done.^(B)