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.

He answered and said, I will not,.... Which answer fitly expresses the language and practice of openly profane and unregenerate sinners, who will not come to Christ, that they may have life; nor will they serve the Lord, but are bent upon indulging their lusts; nor will they be subject to the law of God; nor will they hear and receive the Gospel of Christ, or submit to his ordinances, and are averse to every good work: where is man's free will? this is the true picture of it; man has no will naturally to that which is good,

But afterward he repented, and went: a change of mind was wrought in him, and this produced a change of life and conversation: so, many of the publicans and sinners repented of their sins of disobedience, and rebellion against God, under the ministry of John the Baptist, Christ, and his apostles; not of themselves, men do not naturally see their sin, or need of repentance; their hearts are hard and obdurate; nor have they any spiritual sense and feeling: nothing will bring them to repentance, not the most powerful ministry, the severest judgments, or the kindest mercies, without the grace of God: but it was of God, and owing to his powerful and efficacious grace, that they repented: it was his will they should come to repentance: he called them to it, and gave it to them, as a free grace gift of his: and they repented not in a mere legal way, with a legal repentance, which lies in a mere conviction of the outward acts of sin; in an external sorrow for it, in horror and terror of mind about it, and in shedding tears for it, accompanied with a cessation from the grosser acts of sin, and an outward reformation of life and manners: but they repented in an evangelical manner, as such do, who are really converted, and spiritually instructed; who are true believers in Christ, have views, and, at least, hopes of pardoning grace and mercy; and have the love of God shed abroad in their hearts by the Spirit: the repentance of such lies in a spiritual sight and sense of sin, of the evil nature of indwelling sin, and the exceeding sinfulness of it, as well as of the outward actions of life; in a hearty, godly sorrow for it, because committed against a God of purity, grace, and goodness; in a loathing it, and themselves for it; in a holy shame, and blushing, on account of it; and is attended with an ingenuous confession of it, and forsaking it: the consequence of which is, that such go readily and cheerfully into the Lord's vineyard; hear the word with all diligence, receive it with gladness; walk in all the commandments and ordinances of the Lord; and are taught, by the grace that has appeared to them, to live soberly, righteously, and godly in this world.

Repented (μεταμεληθεὶς)

This is a different word from that in Matthew 3:2; Matthew 4:17; μετανοεῖτε, Repent ye. Though it is fairly claimed that the word here implies all that is implied in the other word, the New Testament writers evidently recognize a distinction, since the noun which corresponds to the verb in this passage (μεταμέλεια) is not used at all in the New Testament, and the verb itself only five times; and, in every case except the two in this passage (see Matthew 21:32), with a meaning quite foreign to repentance in the ordinary gospel sense. Thus it is used of Judas, when he brought back the thirty pieces (Matthew 27:3); of Paul's not regretting his letter to the Corinthians (2 Corinthians 7:8); and of God (Hebrews 7:21). On the other hand, μετανοέω, repent, used by John and Jesus in their summons to repentance (Matthew 3:2; Matthew 4:17), occurs thirty-four times, and the noun μετάνοια, repentance (Matthew 3:8, Matthew 3:11), twenty-four times, and in every case with reference to that change of heart and life wrought by the Spirit of God, to which remission of sins and salvation are promised. It is not impossible, therefore, that the word in this passage may have been intended to carry a different shade of meaning, now lost to us. Μεταμέλομαι, as its etymology indicates (μετά, after, and μέλω, to be an object of care), implies an after-care, as contrasted with the change of mind denoted by μετάνοια. Not sorrow for moral obliquity and sin against God, but annoyance at the consequences of an act or course of acts, and chagrin at not having known better. "It may be simply what our fathers were wont to call hadiwist (had-I-wist, or known better, I should have acted otherwise)" (Trench). Μεταμέλεια refers chiefly to single acts; μετάνοια denotes the repentance which affects the whole life. Hence the latter is often found in the imperative: Repent ye (Matthew 3:2; Matthew 4:17; Acts 2:38; Acts 3:19); the former never. Paul's recognition of the distinction (2 Corinthians 7:10) is noteworthy. "Godly sorrow worketh repentance (μετάνοιαν) unto salvation," a salvation or repentance "which bringeth no regret on thinking of it afterwards" (ἀμεταμέλητον). There is no occasion for one ever to think better of either his repentance or the salvation in which it issued.

He answered and said, I will not: but afterward he repented, and went.

21:28-31 A certain man had two sons. The two sons represent the priests, elders and scribes on the one hand, and the publicans and harlots, the sinners, on the other (Mt 21:31). Both classes were bidden to work in the Lord's vineyard. The publicans and sinners had refused, but repented at the preaching of John. The others professed to obey, but did not. The design of the parable is to show that the publicans and harlots, whom they so much despised, were morally superior to his questioners.

Margin repented

Cf., Lk 15:20, the other perfect illustration of repentance. See Scofield Note: "Acts 17:30".

29. He answered and said, I will not-Trench notices the rudeness of this answer, and the total absence of any attempt to excuse such disobedience, both characteristic; representing careless, reckless sinners resisting God to His face.

21:28-32 Parables which give reproof, speak plainly to the offenders, and judge them out of their own mouths. The parable of the two sons sent to work in the vineyard, is to show that those who knew not John's baptism to be of God, were shamed by those who knew it, and owned it. The whole human race are like children whom the Lord has brought up, but they have rebelled against him, only some are more plausible in their disobedience than others. And it often happens, that the daring rebel is brought to repentance and becomes the Lord's servant, while the formalist grows hardened in pride and enmity.