Identity function - the First Commandment

[timelets]

I am the LORD thy God, who brought thee out of the land of Egypt, out of the house of bondage. Thou shalt have no other gods before Me. ---- Exodus 20:2

f: A->B (adding a god); == note that in this case "god" belongs to the category "other gods"
g: B->A (removing the god).

1_Moses = gºf.