They answered and said to Him, "Abraham is our father." Jesus said to them, "If you were Abraham's children, you would do the works of Abraham.
John 8:39
Surrounding context
8:38 I speak what I have seen with My Father, and you do what you have seen with your father."
8:39 They answered and said to Him, "Abraham is our father." Jesus said to them, "If you were Abraham's children, you would do the works of Abraham.
8:40 But now you seek to kill Me, a Man who has told you the truth which I heard from God. Abraham did not do this.