Thematic Bible: The lost sheep

And he spoke to them this parable, saying, What man of you having a hundred sheep, and having lost one of them, does not leave the ninety and nine in the wilderness and go after that which is lost, until he find it? and having found it, he lays it upon his own shoulders, rejoicing; read more.
and 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. I 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.

What think ye? If a certain man should have a hundred sheep, and one of them be gone astray, does he not, leaving the ninety and nine on the mountains, go and seek the one that has gone astray? And if it should come to pass that he find it, verily I say unto you, he rejoices more because of it than because of the ninety and nine not gone astray. So it is not the will of your Father who is in the heavens that one of these little ones should perish.