Deuteronomy 11:8

8 and ye have kept all the command which I am commanding thee to-day, so that ye are strong, and have gone in, and possessed the land whither ye are passing 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 that which He hath done to Dathan, and to Abiram, sons of Eliab, sons of Reuben, when the earth hath opened her mouth and swalloweth them, and their houses, and their tents, and all that liveth, which is at their feet, in the midst of all Israel:
7 `-- But [it is] your eyes which are seeing all the great work of Jehovah, which He hath done;
8 and ye have kept all the command which I am commanding thee to-day, so that ye are strong, and have gone in, and possessed the land whither ye are passing over to possess it,
9 and so that ye prolong days on the ground which Jehovah hath sworn to your fathers to give to them and to their seed -- a land flowing with milk and honey.
10 `For the land whither thou art going in to possess it, is not as the land of Egypt whence ye have come out, where thou sowest thy seed, and hast watered with thy foot, as a garden of the green herb;
Young's Literal Translation is in the public domain.