Deut 29:2-5 . . Moses summoned all the Israelites and said to them:

. . .You have seen with your own eyes everything the Lord did in Egypt to Pharaoh and all his servants and his whole country-- all the great tests of strength, the miraculous signs, and the amazing wonders. But to this day the Lord has not given you minds that understand, nor eyes that see, nor ears that hear!

By the time Moses made that statement, Israel had the Ten Commandments plus all but the final book of the Pentateuch, i.e. Genesis, Exodus, Leviticus, and Numbers. After all that adventure, all their experiences, and all that scripture in their midst and at their disposal; how could Moses possibly say that their minds lacked understanding, their eyes were blind, and their ears deaf?

Pretty amazing isn't it? Neither miracles, nor wonders, nor tests of strength between God and Egypt, nor the Ten Commandments, nor their God-given scriptures, had made any improvement whatsoever in the Jews' overall spiritual condition.