You are still worldly. For since there is jealousy and quarreling among you, are you not worldly? Are you not acting like mere men?
~ 1 Corinthians 3:3, NIV
For thou shalt worship no other god: for the Lord, whose name is Jealous, is a jealous God:
Lest thou make a covenant with the inhabitants of the land, and they go a whoring after their gods, and do sacrifice unto their gods, and one call thee, and thou eat of his sacrifice;
And thou take of their daughters unto thy sons, and their daughters go a whoring after their gods, and make thy sons go a whoring after their gods.
~ Exodus 34:14-16, KJV