Bible Verses About Shepherds: Searching them out when lost and straying

As a shepherd seeketh out his flock in the day that he is among his sheep that are scattered abroad, so will I seek out my sheep; and I will deliver them out of all places whither they have been scattered in the cloudy and dark day.

What man of you, having a hundred sheep, and having lost one of them, doth not leave the ninety and nine in the wilderness, and go after that which is lost, until he find it?

And when he hath found it, he layeth it on his shoulders, rejoicing.