Love the Lord your God with all you are

Luke 10:27
And he, answering, said, Have love for the Lord your God with all your heart and with all your soul and with all your strength and with all your mind; and for your neighbour as for yourself.

Do not worship other Gods

And the wrath of the Lord came on Israel because they had done evil against the Lord their God, who took them out of the land of Egypt from under the yoke of Pharaoh, king of Egypt, and had become worshippers of other gods,
2 Kings 17:7

Living by the rules of the nations whom the Lord had sent out from before the children of Israel.
2 Kings 17:8