Luke 15:8-10

8 "Or suppose a woman who has ten silver coins loses one of them - what does she do? She lights a lamp, sweeps her house, and looks carefully everywhere until she finds it.

9 When she finds it, she calls her friends and neighbors together, and says to them, "I am so happy I found the coin I lost. Let us celebrate!'

10 In the same way, I tell you, the angels of God rejoice over one sinner who repents."