Hear, O Israel ~ Sh'ma Yis'ra'eil

Sh'ma Yis'ra'eil Adonai Eloheinu Adonai Echad.

There is no other divine being in existence, 

and that Yahweh is that being, 

a single being, whom we should worship.

Deuteronomy 6:4-10

Hear, O Israel: The Lord our God is one Lord; and you shall love the Lord your God with all your heart, and with all your soul, and with all your might. And these words which I command you this day shall be upon your heart; and you shall teach them diligently to your children, and shall talk of them when you sit in your house, and when you walk by the way, and when you lie down, and when you rise. And you shall bind them as a sign upon your hand, and they shall be as frontlets between your eyes. And you shall write them on the doorposts of your house and on your gates.