Leviticus 24:3-8

Without the vail of the testimony, in the tabernacle of the congregation, shall Aaron order it from the evening unto the morning before the LORD continually: it shall be a statute for ever in your generations. He shall order the lamps upon the pure candlestick before the LORD continually. And thou shalt take fine flour, and bake twelve cakes thereof: two tenth deals shall be in one cake. And thou shalt set them in two rows, six on a row, upon the pure table before the LORD. And thou shalt put pure frankincense upon each row, that it may be on the bread for a memorial, even an offering made by fire unto the LORD. Every sabbath he shall set it in order before the LORD continually, being taken from the children of Israel by an everlasting covenant.