All the commandments which I command thee this day shall ye observe to do that ye may live, and multiply, and go in and possess the land which the Lord sware unto your fathers. The constant repetition of the same leading thought serves to impress it upon the minds of the hearers with great force.
Related Commentaries of Deuteronomy 8:1
Deuteronomy 8:1
1 All the commandments which I command thee this day shall ye observe to do, that ye may live, and multiply, and go in and possess the land which the LORD sware unto your fathers.