The Weaning Feast and Isaac's Face Turned Like Abraham's

"Who would have spoken to Abraham that Sarah would nurse children?" And how many children did she nurse? It was taught: On that very day that Abraham our father weaned his son Isaac, he made a great feast. And the nations of the world were saying: Have you seen this old man and old woman, who brought a foundling from the marketplace and say, He is our son? And not only that, but they have made a great feast in order to uphold their claim. What did Abraham our father do? He arose and invited all the great ones of the generation, and Sarah our mother too invited their wives. And each and every one brought her child but did not bring her wet-nurse. A miracle occurred, and Sarah's breasts opened like two springs, and she nursed them all. And still they said, Could Sarah, ninety years old, give birth? Could Abraham, one hundred years old, father a child? Immediately the form of Isaac's face was transformed and made to resemble Abraham. At that hour they declared (Genesis 25:19), "Abraham fathered Isaac."