Deuteronomy 4:35-39

Unto thee it was showed, that thou mightest know that Jehovah he is God; there is none else besides him. Out of heaven he made thee to hear his voice, that he might instruct thee: and upon earth he made thee to see his great fire; and thou heardest his words out of the midst of the fire. And because he loved thy fathers, therefore he chose their seed after them, and brought thee out with his presence, with his great power, out of Egypt; to drive out nations from before thee greater and mightier than thou, to bring thee in, to give thee their land for an inheritance, as at this day. Know therefore this day, and lay it to thy heart, that Jehovah he is God in heaven above and upon the earth beneath; there is none else.