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.
8. This book of the Law, etc Assiduous meditation on the Law is also commanded; because, whenever it is intermitted, even for a short time, many errors readily creep in, and the memory becomes rusted, so that many, after ceasing from the continuous study of it, engage in practical business, as if they were mere ignorant tyros.
Jos 1:6-8 The promise is followed by the condition upon which the Lord would fulfil His word. Joshua was to be firm and strong, i.e., well-assured, courageous, not alarmed (vid., Deu 31:6). In the first place (Jos 1:6), he was to rely firmly upon the Lord and His promise, as Moses and the Lord had already told him (Deu 31:7 and Deu 31:23), and as...
Commenting on Joshua 1:6-8
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...