Matthew 18:12,13
How think you? if a man have an hundred sheep, and one of them be gone astray, does he not leave the ninety and nine, and goes into the mountains, and seeks that which is gone astray?
Nave's Topical Index—AKJV

Luke 15:4-7
What man of you, having an hundred sheep, if he lose one of them, does not leave the ninety and nine in the wilderness, and go after that which is lost, until he find it?
Nave's Topical Index—AKJV