Joshua 1:7

Joshua’s responsibility included unswerving obedience to the Mosaic Law. This would be the key to his success. Knowing the law was only the first step. Practicing it was what would make Joshua effective (cf. Deuteronomy 5:32-33).

"The important lesson which we hence learn is, that in nothing is there more scope for the display of the highest moral heroism than in daring, in all circumstances, to cleave steadfastly to the word of God as the rule of our conduct. It is in this chiefly that the fortitude of the Christian soldier is to evince itself." [Note: Bush, p. 20.]