Deuteronomy 6:13-15

New Revised Standard Version, Anglicised Catholic Edition

¹³ The Lord your God you shall fear; him you shall serve, and by his name alone you shall swear. ¹⁴ Do not follow other gods, any of the gods of the peoples who are all around you, ¹⁵ because the Lord your God, who is present with you, is a jealous God. The anger of the Lord your God would be kindled against you and he would destroy you from the face of the earth.