Luke 15:3-7

New Revised Standard Version, Anglicised Catholic Edition

³ So he told them this parable: ⁴ ‘Which one of you, having a hundred sheep and losing one of them, does not leave the ninety-nine in the wilderness and go after the one that is lost until he finds it? ⁵ When he has found it, he lays it on his shoulders and rejoices. ⁶ And when he comes home, he calls together his friends and neighbours, saying to them, “Rejoice with me, for I have found my sheep that was lost.” ⁷ Just so, I tell you, there will be more joy in heaven over one sinner who repents than over ninety-nine righteous people who need no repentance.