Leviticus 18:3-6

³You must not do the things that the people do in Egypt, where you lived previously. You must not do the things that the people do in Canaan, the land to which I am taking you. Do not follow their customs.

⁴My laws are what you must do, and my commandments are what you must keep, so that you walk in them, because I am Yahweh your God.

⁵Therefore you must keep my decrees and my laws. If a person obeys them, he will live because of them. I am Yahweh.

⁶No one must sleep with any close relative to uncover his nakedness. I am Yahweh.