Now we know that God heareth not sinners. Those who think that the man spoke this, in accordance with the opinion of the people, are mistaken; for the word sinner, in this passage, as in another which lately occurred, means an ungodly and immoral person. It is the uniform doctrine of Scripture, that God does not listen to any but those who call upon him with truth and sincerity. For while faith alone opens the door to us to go to God, it is certain that all wicked men are excluded from approaching to him; and he even declares that he detests their prayers, (Proverbs 28:9,) as he abhors their sacrifices, (Proverbs 15:8.) It is by a special privilege that he invites his children to himself; and it is the Spirit of adoption alone that crieth out in our hearts, Abba, Father, (Romans 8:15; Galatians 4:6.) In short, no man is properly disposed to pray to God, unless his heart be purified by faith. But wicked men profane the sacred name of God by their prayers, and therefore they deserve rather to be punished for this sacrilege, than to obtain any thing for salvation. Accordingly, the blind man does not reason inconclusively, that Christ has come from God, because God lends a favorable ear to his prayers.

Now we know - That is, it is an admitted or conceded point. No one calls it into question.
God heareth not - When a miracle was performed it was customary to invoke the aid of God. Jesus often did this himself, and it was by his power only that prophets and apostles could perform miracles. The word "heareth" in this place is to be understood as referring to such cases. God will not hear - that is, answer.
Sinners - Impostors. False prophets and pretenders to divine revelation. See John 9:24. The meaning of this verse is, therefore, "It is well understood that God will not give miraculous aid to impostors and false prophets." We may remark here:
1. That the passage has no reference to the prayers which sinners make for salvation.
2. If it had it would not be of course true. It was the mere opinion of this man, in accordance with the common sentiment of the Jews, and there is no evidence that he was inspired.
3. The only prayers which God will not hear are those which are offered in mockery, or when the man loves his sins and is unwilling to give them up. Such prayers God will not hear, Psalm 66:18; "If I regard iniquity in my heart, the Lord will not hear me;" Isaiah 1:14-15; Job 27:9; Jeremiah 11:11; Ezekiel 8:18; Micah 3:4; Zac 7:13,
A worshipper - A sincere worshipper; one who fears, loves, and adores him.
Doeth his will - Obeys his commandments. This is infallibly true. The Scripture abounds with promises to such that God will hear their prayer. See Psalm 34:15; Matthew 7:7-8.

God heareth not sinners - I believe the word ἁμαρτωλων signifies heathens, or persons not proselyted to the Jewish religion; and therefore it is put in opposition to θεοσεβης, a worshipper of the true God. See the note on Luke 7:37. But in what sense may it be said, following our common version, that God heareth not sinners? When they regard iniquity in their heart - when they wish to be saved, and yet abide in their sins - when they will not separate themselves from the workers and works of iniquity. In all these cases, God heareth not sinners.

Now we know that God heareth not sinners,.... All mankind are sinners, even God's elect; yea, such who are truly gracious and righteous persons; for there is no man without sin; and God hears such who cry unto him day and night; such Christ came to save; for such he died; and these he calls to repentance; and every penitent sinner God hears: but by "sinners" are meant notorious sinners, such in whom sin reigns, who live in sin, and particularly impostors. The man takes up the word the Jews had made use of, and applied to Christ, John 9:24, and suggests, that had Jesus been a sinner, that is, an impostor, God would not have heard him, or have assisted him in doing a miracle, to support an imposture, or cover and encourage a fraud; but that he was heard and assisted, was a plain case: whereas not only they, the learned doctors of the nation, but such an illiterate man as himself knew, that notoriously wicked men, cheats, and deceivers, were not heard of God; and this was known from the Scripture, and all experience; see Psalm 66:18. The Persic and Ethiopic versions read, "I know, that God", &c.
but if any man be a worshipper of God; fears the Lord, and worships him in spirit and in truth, both with internal and external worship:
and doth his will; for it is not everyone that Lord, or draws nigh to God with his mouth, and honours him with his lips, that is a true and sincere worshipper of him; but he that does his will in faith, from a principle of love, and with a view to his glory: and
him he heareth; for he is nigh to all that call upon him in truth; and such an one the man intimates Jesus must be, since it was out of all dispute that God had heard him, and had bore a testimony to him.

they cast him out--judicially, no doubt, as well in fact. The allusion to his being "born in sins" seems a tacit admission of his being blind from birth--the very thing they had been so unwilling to own. But rage and enmity to truth are seldom consistent in their outbreaks. The friends of this excommunicated youth, crowding around him with their sympathy, would probably express surprise that One who could work such a cure should be unable to protect his patient from the persecution it had raised against him, or should possess the power without using it. Nor would it be strange if such thoughts should arise in the youth's own mind. But if they did, it is certain, from what follows, that they made no lodgment there, conscious as he was that "whereas he was blind, now he saw," and satisfied that if his Benefactor "were not of God, He could do nothing" (John 9:33). There was a word for him too, which, if whispered in his ear from the oracles of God, would seem expressly designed to describe his case, and prepare him for the coming interview with his gracious Friend. "Hear the word of the Lord, ye that tremble at His word. Your brethren that hated you, that cast you out for My name's sake, said, Let the Lord be glorified; BUT HE SHALL APPEAR TO YOUR JOY, and they shall be ashamed" (Isaiah 66:5). But how was He engaged to whom such noble testimony had been given, and for whom such persecution had been borne? Uttering, perhaps, in secret, "with strong crying and tears," the words of the prophetic psalm, "Let not them that wait on Thee, O Lord God of hosts, be ashamed for my sake; let none that seek Thee be confounded for my sake, O God of Israel; because for Thy sake I have borne reproach . . . and the reproaches of them that reproached Thee are fallen upon me" (Psalm 69:6-7, Psalm 69:9).

We - Even we of the populace, know that God heareth not sinners - Not impenitent sinners, so as to answer their prayers in this manner. The honest courage of this man in adhering to the truth, though he knew the consequence, John 9:22, gives him claim to the title of a confessor.