6 Jesus replied, “I am the way, and the truth, and the life. No one comes to the Father except through me. 7 If you have known me, you will know my Father too. And from now on you do know him and have seen him.” 8 Philip said, “Lord, show us the Father, and we will be content.” 9 Jesus replied, “Have I been with you for so long and yet you have not known me, Philip? The person who has seen me has seen the Father! How can you say, ‘Show us the Father’? 10 Do you not believe that I am in the Father, and the Father is in me? The words that I say to you, I do not speak on my own initiative, but the Father residing in me performs his miraculous deeds.
What did Abraham, our forefather, do? He went and invited all of the great men of that generation, and Sarah, our foremother, invited their wives. Each and every one of the wives brought her child with her but did not bring her wet nurse. And a miracle occurred to Sarah, our foremother, and her breasts were opened like two springs, and she nursed all of these children. And still those people were gossiping and saying to each other: Even if Sarah, at ninety years of age, can give birth, can Abraham, at one hundred years of age, father a child? Immediately, the countenance of Isaac’s face transformed and appeared exactly like that of Abraham. Everyone exclaimed and said: “Abraham fathered Isaac” (Genesis 25:19). § The Gemara continues discussing Abraham: Until Abraham, there was no aging, i.e., old age was not physically recognizable. Consequently, one who wanted to speak to Abraham would mistakenly speak to Isaac, and vice versa: An individual who wanted to speak to Isaac would speak to Abraham, as they were indistinguishable. Abraham came and prayed for mercy, and aging was at last noticeable, as it is stated: “And Abraham was old, well stricken in age” (Genesis 24:1), which is the first time that aging is mentioned in the Bible.