King James Version
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;English Standard Version
"Only take care, and keep your soul diligently, lest you forget the things that your eyes have seen, and lest they depart from your heart all the days of your life. Make them known to your children and your children's children--Catholic Public Domain Version
And so, guard yourself and your soul carefully. You should not forget the words that your eyes have seen, and do not let them be cut away from your heart, throughout all the days of your life. You shall teach them to your sons and to your grandsons