Deuteronomy 12:28

Observe and hear, that thou mayst do all the things which I command thee, that it may be well with thee, and with thy children after thee for ever. When thou hast done what is well pleasing and good in the sight of the Lord thy God;

Beware and hearken, and thou shalt do all the commands which I charge thee, that it may be well with thee and with thy sons for ever, if thou shalt do that which is pleasing and good before the Lord thy God.