Leviticus 24:5

3Outside of the veil of the Testimony, in the Tent of Meeting, Aaron shall keep it in order from evening to morning before the LORD continually. It shall be a statute forever throughout your generations.

4He shall keep in order the lamps on the pure gold lamp stand before the LORD continually.

5“You shall take fine flour, and bake twelve cakes of it: two tenths of an ephah shall be in one cake.

6You shall set them in two rows, six on a row, on the pure gold table before the LORD.

7You shall put pure frankincense on each row, that it may be to the bread for a memorial, even an offering made by fire to the LORD.