NET

40 Keep his statutes and commandments that I am setting forth today so that it may go well with you and your descendants and that you may enjoy longevity in the land that the Lord your God is about to give you as a permanent possession.”

Darby

40 And thou shalt keep his statutes, and his commandments, which I command thee this day, that it may be well with thee and with thy sons after thee, and that thou mayest prolong thy days on the land which Jehovah thy God giveth thee, for ever.

KJV

40 Thou shalt keep therefore his statutes, and his commandments, which I command thee this day, that it may go well with thee, and with thy children after thee, and that thou mayest prolong [thy] days upon the earth, which the LORD thy God giveth thee, for ever.