Deuteronomy 11:8

“Therefore shall you keep all the commandments which I command you this day, etc.] 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…”

“11:8-32 Moses here appends to the covenant stipulations (chs 5–11) a list of curses and blessings similar to those that follow the whole covenant text in chs 27–28.”

“Therefore: Deu 8:10, Deu 8:11, Deu 10:12-15, Deu 26:16-19, Deu 28:47; Psa 116:12-16 that ye may: Deu 31:23; Jos 1:6, Jos 1:7; Psa 138:3; Isa 40:31; Dan 10:19; Co2 12:9, Co2 12:10; Eph 3:16, Eph 6:10; Phi 4:13; Col 1:11 Deuteronomy 11:9”

“And this knowledge was to impel them to keep the law, that they might be strong, i.e., spiritually strong ( Deu 1:38), and not only go into the promised land, but also live long therein (cf. Deu 4:26; Deu 6:3). \- In Deu 11:10-12 Moses adduces a fresh motive for his admonition to keep the law with fidelity, founded upon the peculiar nature of the land. Canaan was a land the fertility of which was not dependent, like that of Egypt, upon its being watered by the hand of man, but was kept up by the rain of heaven which was sent down by God the Lord, so that it depended entirely upon the Lord how long its inhabitants should live therein. Egypt is described by Moses as a land which Israel sowed…”