Joshua Chapter 1, Verse 8

8: This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success.- edit KJV text
8: Let not the book of this law depart from thy mouth: but thou shalt meditate on it day and night, that thou mayst observe and do all things that are written in it: then shalt thou direct thy way, and understand it.— edit Douay text
8: And the book of this law shall not depart out of thy mouth, and thou shalt meditate in it day and night, that thou mayest know how to do all the things that are written [in it]; then shalt thou prosper, and make thy ways prosperous, and then shalt thou be wise.— edit LXX text