Deuteronomy 29:2-6

And Moses called unto all Israel, and said unto them, Ye have seen all that the LORD did before your eyes in the land of Egypt unto Pharaoh, and unto all his servants, and unto all his land; the great temptations which thine eyes have seen, the signs, and those great miracles: yet the LORD hath not given you an heart to perceive, and eyes to see, and ears to hear, unto this day. And I have led you forty years in the wilderness: your clothes are not waxen old upon you, and thy shoe is not waxen old upon thy foot. Ye have not eaten bread, neither have ye drunk wine or strong drink: that ye might know that I am the LORD your God.