Berean Study Bible
Only be on your guard and diligently watch yourselves, so that you do not forget the things your eyes have seen, and so that they do not slip from your heart as long as you live. Teach them to your children and grandchildren.

King James Bible
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;

American Standard Version
Only take heed to thyself, and keep thy soul diligently, lest thou forget the things which thine eyes saw, and lest they depart from thy heart all the days of thy life; but make them known unto thy children and thy children's children;

Darby Bible Translation
Only take heed to thyself, and keep thy soul diligently, lest thou forget the things that thine eyes have seen (and lest they depart from thy heart all the days of thy life; but thou shalt make them known to thy sons and to thy sons' sons),

Douay-Rheims Bible
Keep thyself therefore, and thy soul carefully. Forget not the words that thy eyes have seen, and let them not go out of thy heart all the days of thy life. Thou shalt teach them to thy sons and to thy grandsons,

English Revised Version
Only take heed to thyself, and keep thy soul diligently, lest thou forget the things which thine eyes saw, and lest they depart from thy heart all the days of thy life; but make them known unto thy children and thy children's children;

Young's Literal Translation
'Only, take heed to thyself, and watch thy soul exceedingly, lest thou forget the things which thine eyes have seen, and lest they turn aside from thy heart, all days of thy life; and thou hast made them known to thy sons, and to thy sons' sons.

Deuteronomy 4:9 Bible Hub
Deuteronomy 4:9 Bible Apps
Deuteronomy 4:9 Open Bible