Deuteronomy 13:1-3

MLV(i) 1 If there arise in the midst of you a prophet, or a dreamer of dreams and he gives you a sign or a wonder, 2 and the sign or the wonder occurs, of which he spoke to you, saying, Let us go after other gods, which you have not known and let us serve them, 3 you will not listen to the words of that prophet, or to that dreamer of dreams, for Jehovah your* God proves you*, to know whether you* love Jehovah your* God with all your* heart and with all your* soul.