King James Version
Wherefore it shall come to pass, if ye hearken to these judgments, and keep, and do them, that the LORD thy God shall keep unto thee the covenant and the mercy which he sware unto thy fathers:English Standard Version
"And because you listen to these rules and keep and do them, the LORD your God will keep with you the covenant and the steadfast love that he swore to your fathers.Catholic Public Domain Version
If, after you have heard these judgments, you keep and do them, the Lord your God will also keep his covenant with you and the mercy that he swore to your fathers