Deuteronomy 4:35 in the World English Bible
It was shown to you so that you might know that the LORD is God. There is no one else besides him.
Context
34 Or hath God assayed to go and take him a nation from the midst of another nation, by temptations, by signs, and by wonders, and by war, and by a mighty hand, and by a stretched out arm, and by great terrors, according to all that the LORD your God did for you in Egypt before your eyes?
35 Unto thee it was shewed, that thou mightest know that the LORD he is God; there is none else beside him.
36 Out of heaven he made thee to hear his voice, that he might instruct thee: and upon earth he shewed thee his great fire; and thou heardest his words out of the midst of the fire.