Joshua 1:8

8 This Book of the Law must not depart from your mouth; meditate on it day and night, so that you may be careful to do everything written in it. For then you will prosper and succeed in all you do.

Joshua 1:8 Meaning and Commentary

Joshua 1:8

This book of the law shall not depart out of thy mouth
He was often to read it, frequently repeat it, and speak of it, to refresh his own memory with it, and the memory of those about him. Jarchi restrains it to the book of Deuteronomy now before him:

but thou shalt meditate therein day and night;
whenever he had any leisure from the important business of his office, whether by day or night, see ( Psalms 1:2 ) ;

that thou mayest observe to do according to all that is written
therein;
which frequent speaking of it, and constant meditation on it, would lead unto:

for then thou shalt make thy way prosperous, and then thou shalt have
good success;
in his wars with the Canaanites.

Joshua 1:8 In-Context

6 Be strong and courageous, for you shall give these people the inheritance of the land that I swore to their fathers I would give them.

7 Above all, be strong and very courageous. Be careful to observe all the law that My servant Moses commanded you. Do not turn from it to the right or to the left, so that you may prosper wherever you go.

8 This Book of the Law must not depart from your mouth; meditate on it day and night, so that you may be careful to do everything written in it. For then you will prosper and succeed in all you do.

9 Have I not commanded you to be strong and courageous? Do not be afraid; do not be discouraged, for the LORD your God is with you wherever you go.”

10 Then Joshua commanded the officers of the people: