Leviticus 24:5-9

5And thou shalt take fine flour, and bake twelve cakes thereof: two tenth parts of an ephah shall be in one cake.

6And thou shalt set them in two rows, six on a row, upon the pure table before the LORD.

7And thou shalt put pure frankincense upon each row, that it may be to the bread for a memorial, even an offering made by fire unto the LORD.

8Every sabbath day he shall set it in order before the LORD continually; it is on the behalf of the children of Israel, an everlasting covenant.

9And it shall be for Aaron and his sons; and they shall eat it in a holy place: for it is most holy unto him of the offerings of the LORD made by fire by a perpetual statute.