Luke 15:8-10

“Or what woman, if she has ten silver coins [each one equal to a day’s wages] and loses one coin, does not light a lamp and sweep the house and search carefully until she finds it? And when she has found it, she calls together her [women] friends and neighbors, saying, ‘Rejoice with me, because I found the lost coin!’ In the same way, I tell you, there is joy in the presence of the angels of God over one sinner who repents [that is, changes his inner self—his old way of thinking, regrets past sins, lives his life in a way that proves repentance; and seeks God’s purpose for his life].”