Matthew 10:6

10:6 Go instead to the lost sheep of the house of Israel.

Matthew 18:12-13

18:12 What do you think? If someone owns a hundred sheep and one of them goes astray, will he not leave the ninety-nine on the mountains and go look for the one that went astray? 18:13 And if he finds it, I tell you the truth, he will rejoice more over it than over the ninety-nine that did not go astray.

Luke 15:4-6

15:4 “Which one of you, if he has a hundred sheep and loses one of them, would not leave the ninety-nine in the open pasture and go look for the one that is lost until he finds it? 15:5 Then when he has found it, he places it on his shoulders, rejoicing. 15:6 Returning home, he calls together his friends and neighbors, telling them, ‘Rejoice with me, because I have found my sheep that was lost.’