Luke 15:5-7

5and having found it, he lays it upon his own shoulders, rejoicing;

6and being come to the house, calls together the friends and the neighbours, saying to them, Rejoice with me, for I have found my lost sheep.

7I say unto you, that thus there shall be joy in heaven for one repenting sinner, [more] than for ninety and nine righteous who have no need of repentance.