They answered him, “Our father is Abraham.” Jesus said to them, “If you were Abraham’s children, you would do the works of Abraham.
In context
37I know you are Abraham’s offspring. Yet you are trying to kill me, because my word finds no room in you. 38I speak of what I have seen at the Father’s side; you, then, do what you have heard from your father.” 39They answered him, “Our father is Abraham.” Jesus said to them, “If you were Abraham’s children, you would do the works of Abraham. 40But now you are trying to kill me — a man who has told you the truth I heard from God. That is not what Abraham did. 41You are doing the works of your own father.” They said to him, “We are not illegitimate children. We have one Father: God.”
