Deuteronomy 4:9 in the World English Bible
Only be careful, and keep your soul diligently, lest you forget the things which your eyes saw, and lest they depart from your heart all the days of your life; but make them known to your children and your children’s children—
Context
8 And what nation is there so great, that hath statutes and judgments so righteous as all this law, which I set before you this day?
9 Only take heed to thyself, and keep thy soul diligently, lest thou forget the things which thine eyes have seen, and lest they depart from thy heart all the days of thy life: but teach them thy sons, and thy sons’ sons;
10 Specially the day that thou stoodest before the LORD thy God in Horeb, when the LORD said unto me, Gather me the people together, and I will make them hear my words, that they may learn to fear me all the days that they shall live upon the earth, and that they may teach their children.