John Calvin on John 8:38

38. I speak what I have seen with my Father. He had already made frequent mention of his Father; and now, by an argument drawn from contrary things, he infers that they are enemies to God, and are the children of the devil, because they oppose his doctrine. “For my part,” says he, “I bring nothing forward, but what I have learned from my Father. How comes it then that the word of God excites you to such fury, but because you have an opposite father?” He says that he speaks, and they do, because he discharged the office of a teacher, while they labored strenuously to extinguish his doctrine. At the same time, he protects the Gospel against contempt, by showing that it is not wonderful if it be opposed by the children of the devil Instead of you do, some render it, Do you what you have seen with your father; as if Christ had said, “Come, show that you are the children of the devil, by opposing me; for I speak nothing but what God has commanded.”

John 8:39-42

39. They answered, and said to him, Abraham is our father. Jesus saith to them, If you were Abraham’s children, you would do the works of Abraham. 40. But now you seek to kill me, a man who have spoken to you the truth which I have heard from God: Abraham did not this. 41. You do the works of your father. They said therefore to him, We were not born of fornication; we have one Father, who is God. 42. Jesus said to them, If God were your Father, you would love me: for I proceeded and came from God, for I did not proceed from myself, but he sent me.