Exodus 20:3

Who is like unto thee, O LORD, among the gods? who is like thee, glorious in holiness, fearful in praises, doing wonders?

Thou shalt have none other gods before me.

And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might.

And the LORD drave out from before us all the people, even the Amorites which dwelt in the land: therefore will we also serve the LORD; for he is our God. And Joshua said unto the people, Ye cannot serve the LORD: for he is an holy God; he is a jealous God; he will not forgive your transgressions nor your sins. If ye forsake the LORD, and serve strange gods, then he will turn and do you hurt, and consume you, after that he hath done you good. And the people said unto Joshua, Nay; but we will serve the LORD. And Joshua said unto the people, Ye are witnesses against yourselves that ye have chosen you the LORD, to serve him. And they said, We are witnesses. Now therefore put away, said he, the strange gods which are among you, and incline your heart unto the LORD God of Israel. And the people said unto Joshua, The LORD our God will we serve, and his voice will we obey.

Howbeit every nation made gods of their own, and put them in the houses of the high places which the Samaritans had made, every nation in their cities wherein they dwelt. And the men of Babylon made Succothbenoth, and the men of Cuth made Nergal, and the men of Hamath made Ashima, And the Avites made Nibhaz and Tartak, and the Sepharvites burnt their children in fire to Adrammelech and Anammelech, the gods of Sepharvaim. So they feared the LORD, and made unto themselves of the lowest of them priests of the high places, which sacrificed for them in the houses of the high places. They feared the LORD, and served their own gods, after the manner of the nations whom they carried away from thence. Unto this day they do after the former manners: they fear not the LORD, neither do they after their statutes, or after their ordinances, or after the law and commandment which the LORD commanded the children of Jacob, whom he named Israel; With whom the LORD had made a covenant, and charged them, saying, Ye shall not fear other gods, nor bow yourselves to them, nor serve them, nor sacrifice to them:

Give unto the LORD the glory due unto his name; worship the LORD in the beauty of holiness.

Whom have I in heaven but thee? and there is none upon earth that I desire beside thee.