Luke 15:1:10 Jesus gave great insights into the principles behind rejoicing through parables of lost sheep, lost coin and a sinner that repent.
Luke 15:1-10
[1]One day when many tax collectors and other outcasts came to listen to Jesus,
[2]the Pharisees and the teachers of the Law started grumbling, “This man welcomes outcasts and even eats with them!”
[3]So Jesus told them this parable:
[4]“Suppose one of you has a hundred sheep and loses one of them — what do you do? You leave the other 99 sheep in the pasture and go looking for the one that got lost until you find it.
[5]When you find it, you are so happy that you put it on your shoulders
[6]and carry it back home. Then you call your friends and neighbours together and say to them, ‘I am so happy I found my lost sheep. Let us celebrate!’
[7]In the same way, I tell you, there will be more joy in heaven over one sinner who repents than over 99 respectable people who do not need to repent.
[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 neighbours 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.”