Matthew 10:6
but go to the lost sheep of the house of Israel.
Matthew 15:24
But he answered and said, I am sent only to the lost sheep of the house of Israel.
Matthew 18:12-13
What think ye? if any man had an hundred sheep, and one of them should go astray, would he not leave the ninety and nine, and go upon the hills, and seek that which is gone astray?
Luke 10:31-32
And by chance a certain priest came down that way, and when he saw him, he passed by on the other side.
Luke 15:4-6
saying, What man of you that hath an hundred sheep, and loseth one of them, doth not leave the ninety-nine in the field, and go after that which was lost, till he find it?
James 5:19-20
Brethren, if any among you be seduced from the truth, and one convert him;
1 Peter 2:25
For ye were as sheep going astray; but are now turned unto the shepherd and bishop of your souls.