Good Question!

In Luke 5:21 the Pharisees come up with a good question. It is actually formed in outrageous thoughts just before Jesus heals a paralised man. This man had come to Jesus, literally through the roof. Four friends had brought him to Jesus the hard way. As he lay there in the crowded room in front of Jesus, Jesus looked at him and said, "Friend your sins are forgiven". 

This caused quite a stir among the religious leaders. They began to think together, "This man is blasphemous!" In truth, it is not everyone who can forgive sins. This is why Jesus said shortly after reading their minds, "Why are you thinking these things in your hearts? Which is easier: to say, 'Your sins are forgiven,' or to say, 'Get up and walk'? But I want you to know that the Son of Man has authority on earth to forgive sins." So he said to the paralyzed man, "I tell you, get up, take your mat and go home." (Luke 5:22-24)

Which is easier, to forgive sin, or to heal a paralised man? To us both are equally impossible aren't they? The Pharisees had it right when they said, "No one can forgive sin, but God alone!" Thus Jesus clarifies what he is about to do by saying, "I want you to know that the Son of Man has authority on earth to forgive sins." 

The name "Son of Man" was a Messianic designation used by the Old Testament prophets. It was like saying "The Messiah, God's sent One or the Savior can forgive sins and heal impossible cases like, for instance, this poor crippled guy that just came through the roof. 

Jesus looked at the sick man, his four friends who were peering through the freshly opened hole in the roof and the scowling religious leaders. Soon there would be no doubt as to who the Messiah was. His power to do both hard things would be obvious to all. 

The Messiah still forgives sins today. Did you know that? Have you doubted his power in that regard? Or have you doubted his power to forgive someone else's sins? Don't be like the wicked Pharisees. Believe and be healed.