Augustine of Hippo

Actually, as we have recorded in our Scriptures, the sun itself stood still when the holy man, Joshua the son of Nun, asked that favor of God, and it remained where it was until a battle, already begun, ended in victory.… Such are the miracles which God grants as favors to his saints; although our adversaries would attribute them—if they believed them—to the arts of magic.…In regard, then, to human knowledge of the natures of things, the unbelievers have no right to becloud the issue by their assumption that nothing, even by the …

City of God 21.8 ↗

Ambrose of Milan

But perhaps renown in war keeps some so bound to itself as to make them think that fortitude is to be found in battle alone and that therefore I had gone aside to speak of these things, because that was lacking in us. But how brave was Joshua the son of Nun, who in one battle laid low five kings together with their people! …

On the Duties of the Clergy 1.40.196 ↗

Bonaventure

"God made the two great lights, the smaller light to rule the night," that is, the Old Testament, "and the greater one to rule the day," that is, the New Testament. As the moon receives its light from the sun, so does the Old Testament from the New. And so when the sun stands in the east, and the moon on the opposite side in the west — "Stand still, O sun, at Gabaon, O moon, in the valley of Aialon!" said Josue — then is the Old Testament lighted up: it cannot shine, except by means of the New.

Collations on the Hexaemeron, Collation 13 ↗