“ [In the defeat of the Amalekites] Joshua & Israel clearly understood that the victory was accomplished by God, not the strength of the army. Joshua’s military action in the valley was necessary but it was not sufficient in itself to defeat the enemy.” - Downey
“[Joshua] did not selfishly desire personal advantage. There was no lust for selfish gain. His life was characterized by obedient faith, dauntless courage, indomitable perseverance and a total dedication to God & his word. He revealed cheerful confidence in the face of difficulties. Others gave him high honour because of his unselfish disregard of his own personal interests...In every circumstance he displayed a supreme desire to know the will of God...”
“ Joshua was [acutely aware] of the seen and the unseen worlds. There is no vast chasm between them; the unseen world is right here. The unseen world is always immediately present, not far off. Above everything and overshadowing everything is the reality of God in His glory. It obviously stood Joshua in good stead many times for Him to understand that God was close at hand, that HE is the God who exists and who is ‘here.’” – Schaeffer
“He has seldom been given the full credit he deserves as perhaps the greatest man of faith ever to set foot on the stage of human history. In fact, his entire brilliant career was a straightforward story of simply setting down one foot after another in quiet compliance with the commands of God.” – Phillip Keller
Hope these help.