Lost and found. Are you lost? Were you lost, and now you're found? In the same way that a shepherd searches for just one lost sheep and rejoices and celebrates when he finds it, Jesus is searching for you. And when He finds you, all of heaven will rejoice.

https://hymnary.org/text/i_will_serve_thee_because_i_love_thee
https://www.bible-history.com/links.php?cat=39&sub=414&cat_name=&subcat_name=Shepherds