Exodus 27:21

27:21 In the tent of meeting outside the curtain that is before the testimony, Aaron and his sons are to arrange it from evening to morning before the Lord. This is to be a lasting ordinance among the Israelites for generations to come.

Exodus 30:8

30:8 When Aaron sets up the lamps around sundown he is to burn incense on it; it is to be a regular incense offering before the Lord throughout your generations.

Leviticus 24:2-4

24:2 “Command the Israelites to bring to you pure oil of beaten olives for the light, to make a lamp burn continually. 24:3 Outside the veil-canopy of the congregation in the Meeting Tent Aaron must arrange it from evening until morning before the Lord continually. This is a perpetual statute throughout your generations. 24:4 On the ceremonially pure lampstand he must arrange the lamps before the Lord continually.

Leviticus 24:2

24:2 “Command the Israelites to bring to you pure oil of beaten olives for the light, to make a lamp burn continually.

Leviticus 13:11

13:11 it is a chronic disease on the skin of his body, so the priest is to pronounce him unclean. The priest must not merely quarantine him, for he is unclean.