Commento su Genesi 18:7

בן בקר רך וטוב A CALF, TENDER AND GOOD — There were three calves so that he might give them to eat three tongues together with mustard condiment (Bava Metzia 86b).

AND ABRAHAM RAN UNTO THE HERD. The purport thereof is to tell us of his great desire to bestow kindness. This great man had three hundred and eighteen men⁸⁸Above, 14:14. in his house, each one a swordsman, and he was very old and weakened by his circumcision, yet he went personally to Sarah’s tent to urge her in the making of the bread, and afterwards he ran to the place of the herd to chose a calf, tender and good, to prepare for his guests, and he did not have all these done by means of one of his servants who stood ready to serve him.

THEN ABRAHAM RAN TO THE HERD. Since he told them (v.5) "a morsel of bread," a small quantity, since their journey required them to go, he had to run and hurry, since he said to them a little and he did much. All this was written to recount Abraham's importance [magnanimity].