Deuteronomy 11:8 KJV
Therefore shall ye keep all the commandments which I command you this day, that ye may be strong, and go in and possess the land, whither ye go to possess it;
Deuteronomy 11:8, King James Version
In context
7 But your eyes have seen all the great acts of the Lord which he did.
8 Therefore shall ye keep all the commandments which I command you this day, that ye may be strong, and go in and possess the land, whither ye go to possess it;
9 And that ye may prolong your days in the land, which the Lord sware unto your fathers to give unto them and to their seed, a land that floweth with milk and honey.