Deuteronomy 13:1-5

¹"If a prophet arises among you, or a dreamer of dreams, and gives you a sign or a wonder, ²and the sign or wonder which he tells you comes to pass, and if he says, `Let us go after other gods,' which you have not known, `and let us serve them,' ³you shall not listen to the words of that prophet or to that dreamer of dreams; for the LORD your God is testing you, to know whether you love the LORD your God with all your heart and with all your soul. ⁴You shall walk after the LORD your God and fear him, and keep his commandments and obey his voice, and you shall serve him and cleave to him. ⁵But that prophet or that dreamer of dreams shall be put to death, because he has taught rebellion against the LORD your God, who brought you out of the land of Egypt and redeemed you out of the house of bondage, to make you leave the way in which the LORD your God commanded you to walk. So you shall purge the evil from the midst of you.