Exodus 16:29–30
29 See! The Lord has given you the Sabbath; therefore on the sixth day he gives you bread for two days. Remain each of you in his place; let no one go out of his place on the seventh day.” 30 So the people orested on the seventh day.
Hebrews 4:4
4 For he has somewhere spoken of the seventh day in this way: q“And God rested on the seventh day from all his works.”