No one else has ever claimed they can forgive sins except Jesus. The concept was incomprehensible at the time. Why did Jesus say this? Not once or twice, but all the time. Jesus’ response to this question was just as unconventional. He asks those that questioned him, Why are you thinking evil in your hearts? Then even more puzzling, Jesus picks out a tax collector in the crowd and goes to his house to eat with him and other sinners. Tax collectors were so hated at the time that they were called out separately from all the other sinners. They were a special class of sinners. Can you imagine how Matthew the Tax Collector must have felt when Jesus picked him? Elated! He was the kid nobody liked, never got picked for the team, or the bully everyone hated.
The sinners associated with Jesus were probably some of the worst people of that time – thieves, con artists, prostitutes, rapists, the undesirables of society. People could not believe Jesus would associate with them, let alone eat with them! Today this would be equivalent to drug addicts, alcoholics, sex abusers, AIDS patients, the homeless. So while we are trying to be good and do all the right things, or busy taking stands against this sin or that one, hiding our own sin (if we are truly honest), Jesus is over there eating dinner with some of these same people!
~ Matthew 9:2-13 Dining with Sinners and Tax Collectors ~
Mercy not sacrifice says it all. This is how we should live our lives. When Jesus says that he did not come to call the righteous, he is referring to those who pretend to be righteous and therefore are not willing to repent. We must first admit we are sinners before we can repent and accept a Savior. Repentance is not considered a negative thing but a very positive thing!