In this episode of Walking with Jesus, Evan and Malcolm reason over Luke 15 where Jesus offers parables on the Lost Coin, Lost Sheep, and the Prodigal Son.   

'“What man of you, having a hundred sheep, if he loses one of them, does not leave the ninety-nine in the wilderness, and go after the one which is lost until he finds it? '  Luke 15:4 https://my.bible.com/bible/114/LUK.15.4