Matthew 18:12-14
"What do you think? If a man has a hundred sheep and one of them gets lost, will he not leave the ninety-nine on the hillsides, and go and search for the one that is lost?
Luke 15:4
"What man among you, if he has a hundred sheep, and if he loses one of them, does not leave the ninety-nine in the desert and continue to look for the lost one until he finds it?
John 6:37
All that my Father gives to me will come to me, and I will never, no, never reject anyone who comes to me,
John 10:16
I have other sheep too that do not belong to this fold. I must lead them too, and they will listen to my voice, and all my sheep will become one flock with one shepherd.