Deuteronomy 29:1-4

These are the words of the covenant which the LORD commanded Moses to make with the sons of Israel in the land of Moab, in addition to the covenant which He made with them at Horeb (Sinai). Moses summoned all Israel and said to them, “You have seen all that the LORD did before your eyes in the land of Egypt to Pharaoh, to all his servants, and to all his land; the great trials [of Pharaoh] which your eyes have seen, the signs and those great wonders. Yet to this day the LORD has not given you a heart and mind to understand, nor eyes to see, nor ears to hear.