“The First Parable: The Lost Sheep,” New Testament Stories (2005), 86–87
A good shepherd had 100 sheep. One of them was lost.
The shepherd left the 99 sheep to look for the lost one. When he found it, he was very happy.
The shepherd carried the sheep home. He called to all his friends and neighbors to come and be happy with him. He had found the lost sheep.
Jesus Christ told the Pharisees what the parable meant. He said that those who sin are like the lost sheep.
Just as the shepherd wanted to save the lost sheep, Jesus wants to save those who sin.
Jesus said that was why He was talking with sinners.
Matthew 18:11 (see footnote 11c); Mark 2:17
And just as the shepherd was very happy when he found the lost sheep, Jesus is very happy when we repent.