Leviticus 24:1-9

Then the LORD spoke to Moses, saying, “Command the children of Israel to bring to you clear oil from beaten olives for the light [of the golden lampstand], to make a lamp burn continually. Outside the veil of the Testimony [between the Holy Place and the Most Holy Place] in the Tent of Meeting, Aaron shall always keep the lamps burning before the LORD from evening until morning; it shall be a permanent statute throughout your generations. He shall keep the lamps burning on the pure gold lampstand before the LORD continually. [Rev 1:12-18] “Then you shall take fine flour and bake twelve cakes (bread of the Presence, showbread) with it; two-tenths of an ephah shall be in each cake (loaf). You shall set the bread of the Presence (showbread) in two rows, six in a row, on the pure gold table before the LORD. You shall put pure frankincense [in two censers, one] beside each row, so that it may be with the bread as a memorial portion, an offering by fire to the LORD. Every Sabbath day Aaron shall arrange the showbread before the LORD continually; it is an everlasting covenant for the Israelites. The bread of the Presence shall be for Aaron and his sons, and they shall eat it in a sacred place, for it is for Aaron a most holy portion of the offerings by fire to the LORD, his portion forever.”