Just persons, which need no repentance - Who do not require such a change of mind and purpose as these do - who are not so profligate, and cannot repent of sins they have never committed. Distinctions of this kind frequently occur in the Jewish writings. There are many persons who have been brought up in a sober and regular course of life, attending the ordinances of God, and being true and just in all their dealings; these most materially differ from the heathens mentioned, Luke 15:1, because they believe in God, and attend the means of grace: they differ also essentially from the tax-gatherers mentioned in the same place, because they wrong no man, and are upright in their dealings. Therefore they cannot repent of the sins of a heathen, which they have not practised; nor of the rapine of a tax-gatherer, of which they have never been guilty. As, therefore, these just persons are put in opposition to the tax-gatherers and heathens, we may at once see the scope and design of our Lord's words: these needed no repentance in comparison of the others, as not being guilty of their crimes. And as these belonged, by outward profession at least, to the flock of God, and were sincere and upright according to their light, they are considered as being in no danger of being lost; and at they fear God, and work righteousness according to their light, he will take care to make those farther discoveries to them, of the purity of his nature, the holiness of his law, and the necessity of the atonement, which he sees to be necessary. See the case of Cornelius, Acts 10:1, etc. On this ground, the owner is represented as feeling more joy in consequence of finding one sheep that was lost, there having been almost no hope of its recovery, than he feels at seeing ninety and nine still safe under his care. "Men generally rejoice more over a small unexpected advantage, than over a much greater good to which they have been accustomed." There are some, and their opinion need not be hastily rejected, who imagine that by the ninety and nine just persons, our Lord means the angels - that they are in proportion to men, as ninety-nine are to one, and that the Lord takes more pleasure in the return and salvation of one sinner, than in the uninterrupted obedience of ninety-nine holy angels; and that it was through his superior love to fallen man that he took upon him his nature, and not the nature of angels. I have met with the following weak objection to this: viz. "The text says just persons; now, angels are not persons, therefore angels cannot be meant." This is extremely foolish; there may be the person of an angel, as well as of a man; we allow persons even in the Godhead; besides, the original word, δικαιοις, means simply just ones, and may be, with as much propriety, applied to angels as to men. After all, our Lord may refer to the Essenes, a sect among the Jews, in the time of our Lord, who were strictly and conscientiously moral; living at the utmost distance from both the hypocrisy and pollutions of their countrymen. These, when compared with the great mass of the Jews, needed no repentance. The reader may take his choice of these interpretations, or make a better for himself. I have seen other methods of explaining these words; but they have appeared to me either too absurd or too improbable to merit particular notice.

joy.

Luke 15:32 It was meet that we should make merry, and be glad: for this your brother was dead, and is alive again; and was lost, and is found.

Luke 5:32 I came not to call the righteous, but sinners to repentance.

Matthew 18:13 And if so be that he find it, truly I say to you, he rejoices more of that sheep, than of the ninety and nine which went not astray.

which.

Luke 15:29 And he answering said to his father, See, these many years do I serve you, neither transgressed I at any time your commandment...

Luke 16:15 And he said to them, You are they which justify yourselves before men; but God knows your hearts...

Luke 18:9-11 And he spoke this parable to certain which trusted in themselves that they were righteous, and despised others...

Proverbs 30:12 There is a generation that are pure in their own eyes, and yet is not washed from their filthiness.

Romans 7:9 For I was alive without the law once: but when the commandment came, sin revived, and I died.

Philippians 3:6,7 Concerning zeal, persecuting the church; touching the righteousness which is in the law, blameless...

The Prodigal and his Father
'And He said, A certain man had two sons: 12. And the younger of them said to his father, Father, give me the portion of goods that falleth to me. And he divided unto them his living. 13. And not many days after the younger son gathered all together, and took his journey into a far country, and there wasted his substance with riotous living. 14. And when he had spent all, there arose a mighty famine in that land; and he began to be in want. 15. And he went and joined himself to a citizen of that …
Alexander Maclaren—Expositions Of Holy Scripture

An Appeal to Sinners
Yours in much affection, C. H. S. "This man receiveth sinners."--Luke 15:2. IT WAS A SINGULAR GROUP which had gathered round our Saviour, when these words were uttered; for we are told by the evangelist--"Then drew near unto him all the publicans and sinners for to hear him." The publicans--the very lowest grade, the public oppressors, scorned and hated by the meanest Jew--these, together with the worst of characters, the scum of the streets and the very riff-raff of the society of Jerusalem, came …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 4: 1858

The Prodigal's Return
"When he was yet a great way off, his father saw him, and had compassion, and ran, and fell on his neck, and kissed him." First, I shall notice the position intended in the words, "a great way off ;" secondly, I shall notice the peculiar troubles which agitate the minds of those, who are in this condition; and then, thirdly, I shall endeavor to teach the great loving-kindness of our own adorable God, inasmuch as when we are "a great way off," he runs to us, and embraces us in the arms of his love. …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 4: 1858