Matthew 21:28-32

Verse 28

A certain man had two sons - Under the emblem of these two sons, one of whom was a libertine, disobedient, and insolent, but who afterwards thought on his ways, and returned to his duty; and the second, a hypocrite, who promised all, and did nothing; our Lord points out, on the one hand, the tax-gatherers and sinners of all descriptions, who, convicted by the preaching of John and that of Christ, turned away from their iniquities and embraced the Gospel; and, on the other hand, the scribes, Pharisees, and self-righteous people, who, pretending a zeal for the law, would not receive the salvation of the Gospel.
Verse 29

I will not - This is the general reply of every sinner to the invitations of God; and, in it, the Most High is treated without ceremony or respect. They only are safe who persist not in the denial.
Verse 30

I go, sir - This is all respect, complaisance, and professed, obedience; but he went not: he promised well, but did not perform. What a multitude of such are in the world, professing to know God, but denying him in their works! Alas! what will such professions avail, when God comes to take away the soul?
Verse 31

The publicans and the harlots - In all their former conduct they had said No. Now they yield to the voice of truth when they hear it, and enter into the kingdom, embracing the salvation brought to them in the Gospel. The others, who had been always professing the most ready and willing obedience, and who pretended to be waiting for the kingdom of God, did not receive it when it came, but rather chose, while making the best professions, to continue members of the synagogue of Satan.
Verse 32

John came unto you in the way of righteousness - Proclaiming the truth, and living agreeably to it. Or, John came unto you, who are in the way of righteousness. This seems rather to be the true meaning and construction of this passage. The Jews are here distinguished from the Gentiles. The former were in the way of righteousness, had the revelation of God, and the ordinances of justice established among them; the latter were in the way of unrighteousness, without the Divine revelation, and iniquitous in all their conduct: John came to both, preaching the doctrine of repentance, and proclaiming Jesus the Christ. To say that it was John who came in the way of righteousness, and that to him the words refer, is, in my opinion, saying nothing; for this was necessarily implied: as he professed to come from God, he must not only preach righteousness, but walk in it.

It is very difficult to get a worldly minded and self-righteous man brought to Christ. Examples signify little to him. Urge the example of an eminent saint, he is discouraged at it. Show him a profligate sinner converted to God, him he is ashamed to own and follow; and, as to the conduct of the generality of the followers of Christ, it is not striking enough to impress him. John, and Christ, and the apostles preach; but, to multitudes, all is in vain.
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