On the Life of the Wise Man made perfect by Instruction or, on the Unwritten Law, that is to say, on Abraham (231-235)

But when he was preparing to pursue them for the purpose of delivering his brother’s son, he found himself in want of allies, inasmuch as he himself was a stranger and a sojourner and as no one could dare to oppose the irresistible power of such mighty monarchs flushed with recent victory.

And he devised for himself a most novel alliance. For necessity is the mother of invention, and expedients are found in the most difficult circumstances when a man has set his heart on just and humane objects. For having collected together all his servants, and ordering the slaves whom he had purchased to remain at home (for he was afraid of desertion on their part), he assembled all his domestic servants, and divided them into centuries, and marched forward in their battalions; not, indeed, trusting to them, for his was still a most insignificant force, in comparison with that of the king’s, but placing his confidence in the champion and defender of the just, namely in God.

Therefore putting forth all his exertions he hastened on, in nowise relaxing his speed, until, watching his opportunity,

And he did not cease from attacking them until he had utterly destroyed the hostile army with their kings, and slain them all to a man in front of their camp, and had brought back his brother’s son after this splendid and most glorious victory, bringing back also as fair booty all their cavalry, and all the multitude of their beasts of burden, and a most enormous quantity of spoil. [*]