John 3:11-13

Verse 11. We speak. Jesus here speaks in the plural number, including himself and those engaged with him in preaching the gospel. Nicodemus had said (Jn 3:2), "We know that thou art," &c., including himself and those with whom he acted. Jesus in reply said, We, who are engaged in spreading the new doctrines about which you have come to inquire, speak what we know. We do not deliver doctrines which we do not practically understand. This is a positive affirmation of Jesus, which he had a right to make about his new doctrine. He knew its truth, and those who came into his kingdom knew it also. We learn here,

1st. That the Pharisees taught doctrines which they did not practically understand. They taught much truth (Mt 23:2), but they were deplorably ignorant of the plainest matters in their practical application.

2nd. Every minister of the gospel ought to be able to appeal to his own experience, and to say that he knows the truth which he is communicating to others.

3rd. Every Sunday-school teacher should be able to say, "I know what I am communicating; I have experienced what is meant by the new birth, and the love of God, and the religion which I am teaching."

Testify. Bear witness to.

That we have seen. Jesus had seen by his omniscient eye all the operations of the Spirit on the hearts of men. His ministers have seen its effects as we see the effects of the wind, and, having seen men changed from sin to holiness, they are qualified to bear witness to the truth and reality of the change. Every successful minister of the gospel thus becomes a witness of the saving power of the gospel.

Ye receive not. Ye Pharisees. Though we give evidence of the truth of the new religion; though miracles axe wrought, and proof is given that this doctrine came from heaven, yet you reject it.

Our witness. Our testimony. The evidence which is furnished by miracles and by the saving power of the gospel. Men reject revelation though it is attested by the strongest evidence, and though it is constantly producing the most desirable changes in the hearts and lives of men.

(i) "We speak that we do know" 1Jn 1:1-8.
Verse 12. If I have told you earthly things. Things which occur on earth. Not sensual or worldly things, for Jesus had said nothing of these; but he had told him of operations of the Spirit which had occurred on earth, whose effects were visible, and which might be, therefore, believed. These were the plainest and most obvious of the doctrines of religion.

How shall ye believe. How will you believe. Is there any probability that you will understand them?

Heavenly things. Things pertaining to the government of God and his doings in the heavens; things which are removed from human view, and which cannot be subjected to human sight; the more profound and inscrutable things pertaining to the redemption of men. Learn hence,

1st. The height and depth of the doctrines of religion. There is much that we cannot yet understand.

2nd. The feebleness of our understandings and the corruptions of our hearts are the real causes why doctrines of religion are so little understood by us.

3rd. There is before us a vast eternity, and there are profound wonders of God's government, to be the study of the righteous, and to be seen and admired by them for ever and ever.
Verse 13. And no man hath ascended into heaven. No man, therefore, is qualified to speak of heavenly things, Jn 3:12. To speak of those things requires intimate acquaintance with them--demands that we have seen them; and as no one has ascended into heaven and returned, so no one is qualified to speak of them but He who came down from heaven. This does not mean that no one had gone to heaven or had been saved, for Enoch and Elijah had been borne there (Gen 5:24; comp. Heb 11:5, 2Kgs 2:11), and Abraham, Isaac, and Jacob, and others were there; but it means that no one had ascended and returned, so as to be qualified to speak of the things there.

But he that came down, &c. The Lord Jesus. He is represented as coming down, because, being equal with God, he took upon himself our nature, Jn 1:14, Php 2:6,7. He is represented as sent by the Father, Jn 3:17, 34, Gal 4:4, 1Jn 4:9, 10.

The Son of man. Called thus from his being a man; from his interest in man; and as expressive of his regard for man. It is a favourite title which the Lord Jesus gives to himself.

Which is in heaven. This is a very remarkable expression. Jesus, the Son of man, was then bodily on earth conversing with Nicodemus; yet he declares that he is at the same time in heaven. This can be understood only as referring to the fact that he had two natures--that his divine nature was in heaven, and his human nature on earth. Our Saviour is frequently spoken of in this manner. Comp. Jn 6:62; Jn 6:62, 17:5, 2Cor 8:9. As Jesus was in heaven--as his proper abode was there--he was fitted to speak of heavenly things, and to declare the will of God to man. And we may learn,

1st. That the truth about the deep things of God is not to be learned of men. No one has ascended to heaven and returned to tell us what is there; and no infidel, no mere man, no prophet, is qualified of himself to speak of them.

2nd. That all the light which we are to expect on those subjects is to be sought in the Scriptures. It is only Jesus and his inspired apostles and evangelists that can speak of those things.

3rd. It is not wonderful that some things in the Scriptures are mysterious. They are about things which we have not seen, and we must receive them on the testimony of one who has seen them.

4th. The Lord Jesus is divine. He was in heaven while on earth. He had, therefore, a nature far above the human, and is equal with the Father, Jn 1:1.
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