Luke 15:4-7

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 neighbors, 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 persons who need no repentance.