“Now consider” (he says) “how great this man is to whom even the Patriarch Abraham gave a tenth out of the choice portions.” Spoils taken in battle are called “choice portions.” And it cannot be said that he gave them to him as having a part in the war, because (he said) he met him “returning from the slaughter of the kings,” for he had staid at home (he means), yet [Abraham] gave him the first-fruits of his labors.