Exodus 20:8

20:8 “Remember the Sabbath day to set it apart as holy.

Exodus 28:3

28:3 You are to speak to all who are specially skilled, whom I have filled with the spirit of wisdom, so that they may make Aaron’s garments to set him apart to minister as my priest.

Exodus 29:36

29:36 Every day you are to prepare a bull for a purification offering for atonement. You are to purge the altar by making atonement for it, and you are to anoint it to set it apart as holy.