Exodus 34:14 in the King James Version
For thou shalt worship no other god: for the LORD, whose name is Jealous, is a jealous God:
Context
13 but you shall break down their altars, and dash in pieces their pillars, and you shall cut down their Asherah poles;
14 for you shall worship no other god; for the LORD, whose name is Jealous, is a jealous God.
15 “Don’t make a covenant with the inhabitants of the land, lest they play the prostitute after their gods, and sacrifice to their gods, and one call you and you eat of his sacrifice;