Deuteronomy 13:1-4

KJ2000(i) 1 If there arise among you a prophet, or a dreamer of dreams, and gives you a sign or a wonder, 2 And the sign or the wonder comes to pass, of which he spoke unto you, and he says, Let us go after other gods, which you have not known, and let us serve them; 3 You shall not hearken unto the words of that prophet, or 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. 4 You 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 unto him.