Leviticus 24:2-8

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.

24:5 “You must take choice wheat flour and bake twelve loaves; there must be two tenths of an ephah of flour in each loaf, 24:6 and you must set them in two rows, six in a row, on the ceremonially pure table before the Lord. 24:7 You must put pure frankincense on each row, and it will become a memorial portion for the bread, a gift to the Lord. 24:8 Each Sabbath day Aaron must arrange it before the Lord continually; this portion is from the Israelites as a perpetual covenant.