Leviticus 19:3

19:3 Each of you must respect his mother and his father, and you must keep my Sabbaths. I am the Lord your God.

Leviticus 24:5

24:5 “You must take choice wheat flour and bake twelve loaves; there must be two tenths of an ephah of flour in each loaf,

Leviticus 24:7-8

24:7 You must put pure frankincense on each row, and it will become a memorial portion for the bread, a gift to the Lord. 24:8 Each Sabbath day Aaron must arrange it before the Lord continually; this portion is from the Israelites as a perpetual covenant.