“Just so,

I tell you!

There will be more joy

In heaven

Over one sinner

Who repents

Than over ninety-nine

Righteous persons

Who need no repentance.”

λέγω ὑμῖν ὅτι οὕτως χαρὰ ἐν τῷ οὐρανῷ ἔσται ἐπὶ ἑνὶ ἁμαρτωλῷ μετανοοῦντι ἢ ἐπὶ ἐνενήκοντα ἐννέα δικαίοις οἵτινες οὐ χρείαν ἔχουσιν μετανοίας.

Luke had Jesus conclude this parable about the lost sheep.  Jesus said with a solemn pronouncement (λέγω ὑμῖν) that there would be more joy in heaven (ὅτι οὕτως χαρὰ ἐν τῷ οὐρανῷ ἔσται) over one repentant sinner (ἐπὶ ἑνὶ ἁμαρτωλῷ μετανοοῦντι) than over the 99 righteous people (ἢ ἐπὶ ἐνενήκοντα ἐννέα δικαίοις) who do not need repentance (οἵτινες οὐ χρείαν ἔχουσιν μετανοίας).  This explanation of the lost sheep parable can also be found in Matthew, chapter 18:14, with some minor changes, indicating a Q source.  Luke compared this lost sheep to a repentant sinner.  In Matthew, Jesus explained that it was not the will of his heavenly Father (οὕτως οὐκ ἔστιν θέλημα ἔμπροσθεν τοῦ Πατρὸς ὑμῶν τοῦ ἐν οὐρανοῖς) that these little ones should be lost or perish (ἵνα ἀπόληται ἓν τῶν μικρῶν τούτων).  The heavenly Father did not want to lose anyone, just like the good shepherd did not want to lose any one of his wandering sheep.  Have you ever lost someone close to you?