Luke 15:3-7

And he spoke this parable unto them, saying, What man of you having a hundred sheep if he lose one of them, does not leave the ninety-nine in the wilderness and go after that which is lost until he finds it? And when he has found it, he lays it on his shoulders, rejoicing. And when he comes home, he calls together his friends and neighbours, saying unto them, Rejoice with me, for I have found my sheep which was lost. I say unto you that likewise there shall be more joy in heaven over one sinner that repents than over ninety-nine just persons, who need no repentance.