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.
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Joshua 1:6-10
Tyndale Open Study Notes (CC BY-SA 4.0).
1:8 This Book of Instruction (Hebrew torah) probably refers to the book of Deuteronomy (see Deut 4:44; 29:21; 30:10; 31:9-12). It includes Israel’s foundational law codes as well as God’s moral and spiritual instructions. • God commanded Joshua to think and speak of God’s instruction day and night—i.e., continually (cp. Deut 6:6-7; 17:18-20).
Other Bible passages linked to this one, most cited first.
I will meditate in thy precepts, and have respect unto thy ways.
Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer.
Let the word of Christ dwell in you richly in all wisdom; teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord.
My son, forget not my law; but let thine heart keep my commandments:
Keep therefore the words of this covenant, and do them, that ye may prosper in all that ye do.
He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him.
Authorship: the book itself or Christian tradition. Approximate dates, as in Carson and Moo, An Introduction to the New Testament, and Longman and Dillard, An Introduction to the Old Testament.