Deuteronomy 6:13-15

Revised Standard Version Catholic Edition

¹³ You shall fear the Lord your God; you shall serve him, and swear by his name. ¹⁴ You shall not go after other gods, of the gods of the peoples who are round about you; ¹⁵ for the Lord your God in the midst of you is a jealous God; lest the anger of the Lord your God be kindled against you, and he destroy you from off the face of the earth.