The Parable of the Lost Sheep
3 Then Jesus told them this parable: 4 “Suppose one of you has a hundred sheep and loses one of them. Doesn’t he leave the ninety-nine in the open country and go after the lost sheep until he finds it? 5 And when he finds it, he joyfully puts it on his shoulders 6 and goes home. Then he calls his friends and neighbors together and says, ‘Rejoice with me; I have found my lost sheep.’ 7 I tell you that in the same way there will be more rejoicing in heaven over one sinner who repents than over ninety-nine righteous persons who do not need to repent.
The Parable of the Lost Coin
8 “Or suppose a woman has ten silver coins and loses one. Doesn’t she light a lamp, sweep the house and search carefully until she finds it? 9 And when she finds it, she calls her friends and neighbors together and says, ‘Rejoice with me; I have found my lost coin.’ 10 In the same way, I tell you, there is rejoicing in the presence of the angels of God over one sinner who repents.”
Luke 15:3-10 (NIV)