Deuteronomy Chapter 15, Verse 5

5: Only if thou carefully hearken unto the voice of the LORD thy God, to observe to do all these commandments which I command thee this day.- edit KJV text
5: Yet so if thou hear the voice of the Lord thy God, and keep all things that he hath ordained, and which I command thee this day, he will bless thee, as he hath promised.— edit Douay text
5: And if ye shall indeed hearken to the voice of the Lord your God, to keep and do all these commandments, as many as I charge thee this day,— edit LXX text