He who is of God. As he has a full right to take this for granted, that he is the ambassador of the heavenly Father, and that he discharges faithfully the office which has been committed to him, he kindles into greater indignation against them; for their impiety was no longer concealed, since they were so obstinate in rejecting the word of God. He had showed that they could not bring forward any thing which he had not taught as from the mouth of God. He concludes, therefore, that they have nothing in common with God, for they do not hear the words of God; [1] and, without saying any thing about himself, he charges them with being at war with God. Besides, we are taught by this passage, that there is not a more evident sign of a reprobate mind, than when one cannot endure the doctrine of Christ, even though, in other respects, it shone with angelic sanctity; as, on the contrary, if we embrace that doctrine cheerfully, we have what may be called a visible seal of our election. For he who has the word enjoys God himself; but he who rejects it excludes himself from righteousness and life. Wherefore, there is nothing which we ought to fear so much as to fall under that dreadful sentence.

Footnotes

1 - "Ils n'oyent point les paroles de Dieu."

He that is of God - He that loves, fears, and honors God.
Heareth God's words - Listens to, or attends to the doctrines or commandments of God, as a child who loves his parent will regard and obey his commandments. This is an evidence of true piety. A willingness to receive all that God teaches us and to obey all his commandments, is an undoubted proof that we are his friends, John 14:21; 1-John 2:4; 1-John 3:24. As the Jews did not show a readiness to obey the commands of God, it proved that they were not of him, and to this was owing their rejection of the Lord Jesus.

He that is of God - Meaning probably himself: he who came from God, or was born of God - heareth the words of God - has the constant inspiration of his Spirit, speaks nothing but truth, and cannot possibly err.

He that is of God,.... Who is born, not of blood, by carnal descent from any person, or of the carnal will, or by the power of freewill, or of the will of the best man in the world; but of God, according to his abundant mercy, of his own will, by the power of his grace; and so has God to be his Father: such an one
heareth God's words; the doctrines of the Gospel, which have God for their author, being of his ordaining, sending, and publishing; and his grace for the matter of them, displayed in election, redemption, justification, pardon, adoption, and eternal salvation, and his glory for the end: now a regenerate man has eyes to see into the glory, loveliness, excellency, suitableness, and usefulness of these things; and he has ears to hear, and a heart to understand them, which others have not; and therefore hears them with pleasure, receives them in the love of them, cordially embraces them by faith, and distinguishes them from the words of man; and puts such of them in practice, as requires it:
ye therefore hear them not, because ye are not of God; because God was not their Father, or they were not born of him, as they boasted; therefore they had not eyes to see, nor ears to hear, nor hearts to understand: and it may as fairly be inferred, that because they did not hear the words of God, therefore they were not of God; for these two necessarily imply each other; it looks very dark on such persons, who neither hear the doctrines of the Gospel externally nor internally.

He that is of God - That either loves or fears him, heareth - With joy and reverence, God's words - Which I preach.