Joshua 1:6-8

6 Be thou comforted, and be thou strong; for thou shalt part by lot to this people the land, for which I swore to thy fathers, that I should give it to them.

7 Therefore be thou comforted, and be thou full strong, that thou keep and do all the law, which Moses, my servant, commanded to thee; bow thou not from it to the right side, either to the left side, that thou understand all things which thou doest.

8 The book of this law depart not from thy mouth, but thou shalt think therein in days and nights, that thou keep and do all things that be written therein; then thou shalt dress thy way, and thou shalt understand it.