Leviticus 24:1-7

1 And the LORD spoke unto Moses, saying,
2 Command the sons of Israel that they bring unto thee pure oil olive beaten for the light, to cause the lamps to burn continually.
3 Outside the veil of the testimony, in the tabernacle of the testimony, shall Aaron order it from the evening unto the morning before the LORD continually; it shall be a perpetual statute for all your ages.
4 He shall order the lamps upon the pure lampstand before the LORD continually.
5 And thou shalt take fine flour and bake twelve cakes thereof; each cake shall be of two-tenth deals.
6 And thou shalt set them in two orders, six in each order, upon the clean table before the LORD.
7 And thou shalt put pure frankincense upon each order, that it may be on the bread for an aroma and incense unto the LORD.