If any man will do his will - Literally, if any man wills or is willing to do the will of God. If there is a disposition in anyone to do that will, though he should not be able perfectly to keep His commandments. To do the will of God is to obey His commandments; to yield our hearts and lives to His requirements. A disposition to do His will is a readiness to yield our intellects, our feelings, and all that we have entirely to Him, to be governed according to His pleasure.

He shall know - He shall have evidence, in the very attempt to do the will of God, of the truth of the doctrine. This evidence is internal, and to the individual it is satisfactory and conclusive. It is of two kinds.

1. He will find that the doctrines which Jesus taught are such as commend themselves to his reason and conscience, and such as are consistent with all that we know of the perfections of God. His doctrines commend themselves to us as fitted to make us pure and happy, and of course they are such as must be from God.

2. An honest desire to obey God will lead a man to embrace the great doctrines of the Bible. He will find that his heart is depraved and inclined to evil, and he will see and feel the truth of the doctrine of depravity; he will find that he is a sinner and needs to be born again; he will learn his own weakness, and see his need of a Saviour, of an atonement, and of pardoning mercy; he will feel that he is polluted, and needs the purifying influence of the Holy Spirit.

Thus, we may learn:

1. That an honest effort to obey God is the easiest way to become acquainted with the doctrines of the Bible.

2. Those who make such an effort will not cavil at any of the doctrines of the Scriptures.

3. This is evidence of the truth of revelation which every person can apply to his own case.

4. It is such evidence as to lead to certainty. No one who has ever made an honest effort to live a pious life, and to do all the will of God, has ever had any doubt of the truth of the Saviour's doctrines, or any doubt that his religion is true and is suited to the nature of man. They only doubt the truth of religion who wish to live in sin.

5. We see the goodness of God in giving us evidence of his truth that may be within every man's reach. It does not require great learning to be a Christian, and to be convinced of the truth of the Bible. It requires an honest heart, and a willingness to obey God.

Whether it be of God - Whether it be divine.

Or whether I speak of myself - Of myself without being commissioned or directed by God.

If any man wilt do his will, etc. - I will give you a sure rule by which ye may judge of my doctrine: If you really wish to do the will of God, begin the practice of it; and take my doctrine, and apply it to all that you know God requires of man; and if you find one of my precepts contrary to the nature, perfections, and glory of God, or to the present or eternal welfare of men, then ye shall be at liberty to assert that my doctrine is human and erroneous, and God has not sent me. But if, on the contrary, ye find that the sum and substance of my preaching is, That men shall love God with all their heart, soul, mind, and strength, and their neighbor as themselves; and that this doctrine must bring glory to God in the highest, while it produces peace and good will among men; then acknowledge that God has visited you, and receive me as the Messiah promised to your fathers.

If any man will do his will,.... Meaning, not one that perfectly fulfils the law, which is the good, and perfect, and acceptable will of God; for there is no man that does this, or can do it; nor is it so said here, "if any man do his will", but "if any man will do" it; that is, is desirous of doing it; who has it wrought in him both to will and do, of the good pleasure of God, by his grace and Spirit; with whom to will is present, though, he has not power to perform, and so is a spiritual man; and who believes in the Lord Jesus Christ, which is one branch of the will of God; and who depends upon the Spirit and grace of God, and acts from a principle of love to God, and in the exercise of faith on Christ:

he shall know of the doctrine, whether it be of God, or whether I speak of myself; not a man of mere natural knowledge and learning, or a man of theory and speculation, is a judge of doctrine; but he that leans not to his own understanding, and implores the assistance of the Divine Spirit, and who is for reducing doctrine into practice: he knows by the efficacy of the doctrine upon his heart, and the influence it has on his life and conversation; by its coming not in word only, but in power; and by its working effectually in him, whether it is divine or human, of God or of man.

Will do his will (θέλῃ τὸ θέλημα αὐτοῦ ποιεῖν)

This is a notable illustration of the frequent blunder of the A.V. in rendering θέλειν, to will or determine, as a mere auxiliary verb. By overlooking the distinct meaning of the verb to will, and resolving willeth to do into will do, it sacrifices the real force of the passage. Jesus says, if it be one's will to do; if his moral purpose is in sympathy with the divine will.

He shall know

Sympathy with the will of God is a condition of understanding it.

Of God (ἐκ τοῦ Θεοῦ)

Better, from; proceeding out of.

Of myself (ἀπ' ἐμαυτοῦ)

Of myself is misleading, being commonly understood to mean concerning myself. Rev., correctly, from myself; without union with the Father. Compare John 5:30.

If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.

7:17 If any man will do his will, he shall know of the doctrine. The Common Version is ambiguous. The Revised Version is clear: If any man willeth to do, etc. The difficulty is in the way of the Jews recognizing the teaching of Jesus as divine, was that they were not willing to do God's will. This spirit of disobedience is the source of most, if not all, skepticism. Unbelief is due, not to the head, but to the heart. He who in his heart says, Thy will be done, give me light and I will walk in it, will find that Christ is just the teacher demanded by his soul, and that the gospel meets his soul's want. Jesus will so meet the wants of his soul that he will be satisfied and will know the doctrine, that it comes from him who made the soul. The great German poet, Heine, was a scoffer until old and tortured with chronic disease. Then he said:

I have discarded my proud philosophy and learned to trust in the consolations of religion.''

He had no more outward evidence than before, but his heart had changed.

7:17 If any man be willing to do his will, he shall know of the doctrine, whether it be of God - This is a universal rule, with regard to all persons and doctrines. He that is thoroughly willing to do it, shall certainly know what the will of God is.

17. If any man will do his will, &c.-"is willing," or "wishes to do."

whether . of God, or . of myself-from above or from beneath; is divine or an imposture of Mine. A principle of immense importance, showing, on the one hand, that singleness of desire to please God is the grand inlet to light on all questions vitally affecting one's eternal interests, and on the other, that the want of his, whether perceived or not, is the chief cause of infidelity amidst the light of revealed religion.

7:14-24 Every faithful minister may humbly adopt Christ's words. His doctrine is not his own finding out, but is from God's word, through the teaching of his Spirit. And amidst the disputes which disturb the world, if any man, of any nation, seeks to do the will of God, he shall know whether the doctrine is of God, or whether men speak of themselves. Only those who hate the truth shall be given up to errors which will be fatal. Surely it was as agreeable to the design of the sabbath to restore health to the afflicted, as to administer an outward rite. Jesus told them to decide on his conduct according to the spiritual import of the Divine law. We must not judge concerning any by their outward appearance, but by their worth, and by the gifts and graces of God's Spirit in them.