Luke 15:4; Luke 15:7; Luke 17:17

4 "What man among you, if he has a hundred sheep and has lost one of them, does not leave the ninety-nine in the open pasture and go after the one which is lost until he finds it?

7 "I tell you that in the same way, there will be more joy in heaven over one sinner who repents than over ninety-nine righteous persons who need no repentance.

17 Then Jesus answered and said, "Were there not ten cleansed? But the nine -where are they?