“repeat them over and over.” The Hebrew word is shanan (#08150 שָׁנַן), and it is the piel aspect. The HALOT Hebrew-English Lexicon has, “to repeat...to speak, or to recite again and again (Deut. 6:7).” The Christian Standard Bible has “Repeat them to your children;” the NAB has “Keep repeating them to your children;” and the NLT has “Repeat them again and again to your children” (cp. also Fox, The Schocken Bible).
Children learn by repetition, and parents have the responsibility to make sure their children have a knowledge of what God expects from them. The world acts as if children have the wisdom to make up their own minds about right and wrong, good and evil, and so worldly people want to make it a crime to try to direct the way children are to go in life, but the world will not be the Judge on Judgment Day, and parents who ignore the command of God to teach their children the ways of God are disobeying God. The Bible is clear that children are an inheritance from Yahweh (Ps. 127:3 ), and “a child who is left to itself puts his mother to shame” (Prov. 29:15). Adults and children need direction. Adults should have gotten some godly direction from their parents, but many never did and have to learn from the Bible, others, and the hard knocks of life. Children should have the advantage of learning about life and God from parents, and God holds parents responsible to give that godly direction.