Deuteronomy 6:3-5

3And thou shalt hear, Israel, and take heed to do [them]; that it may be well with thee, and that ye may increase greatly, as Jehovah the 1God of thy fathers hath said unto thee, in a land flowing with milk and honey.

4Hear, Israel: Jehovah our 2God is one Jehovah;

5and thou shalt love Jehovah thy 3God with all thy heart, and with all thy soul, and with all thy strength.