We know that the Son of God has come, and has given us insight to know Him who is the Real God; and we are in Him who is real, even in his Son Jesus Christ. This is the real God, this is life eternal.
He who believes in the Son of God possesses that testimony within himself; he who will not believe God, has made God a liar by refusing to believe the testimony which God has borne to his Son.
(His parents said this because they were afraid of the Jews; for the Jews had already agreed that anyone who confessed him to be Christ should be excommunicated.
So when I come, I shall bring up what he is doing, babbling against me with wicked words — and, not satisfied with words, he refuses to welcome the brothers, checks those who want to welcome them, and excommunicates them from the church.