Deuteronomy 11:8

8 Keep then all the commandment which I command you this day, that ye may be strong, and enter in and possess the land, whither ye pass over to possess it;

Deuteronomy 11:8 Meaning and Commentary

Deuteronomy 11:8

Therefore shall you keep all the commandments which I command
you this day
For the reasons before suggested, as well as for what follow:

that ye may be strong;
healthful in body, and courageous in mind, for sin tends to weaken both; whereas observance of the commands of God contributes to the health and strength of the body, and the rigour of the mind; both which were necessary to the present expedition they were going upon:

and go in and possess the land whither ye go to possess it;
the land of Canaan, they were marching towards in order to possess it; and nothing would more inspire them with courage, and cause them to enter it manfully without fear of their enemies, than obedience to the commands of God; whose presence being promised them on that account, they might expect it, and so had nothing to fear from the inhabitants of the land.

Deuteronomy 11:8 In-Context

6 and what he did unto Dathan and Abiram, the sons of Eliab, the son of Reuben, -- how the earth opened its mouth, and swallowed them up, with their households, and their tents, and all the living substance that belonged to them, in the midst of all Israel.
7 For your eyes have seen all the great work of Jehovah which he hath done.
8 Keep then all the commandment which I command you this day, that ye may be strong, and enter in and possess the land, whither ye pass over to possess it;
9 and that ye may prolong your days in the land which Jehovah swore unto your fathers to give unto them and unto their seed, a land flowing with milk and honey.
10 For the land, whither thou enterest in to possess it, is not as the land of Egypt, from whence ye came out, where thou sowedst thy seed, and wateredst it with thy foot, as a garden of herbs;
The Darby Translation is in the public domain.