Luke 5:26

‘And amazement took hold on all, and they glorified God, and they were filled with awe, saying, “We have seen strange things today.” '

But all the people who saw what had happened were amazed, and they glorified God and were filled with awe. They had no theological problem with it. They declared rightly, that “We have seen strange things today”, that is things far beyond their expectations.

So by His actions Jesus has now established that He is the Son of man Who has the power on earth to forgive sins. Men did not have to wait until the Hereafter. They could know now that they were forgiven on the authority of Jesus, so close was His relationship with His Father. But the fact that He was so demonstrated that He was the One Who had come to the Father and received Kingly Rule and dominion. It demonstrated that He was the heavenly Messiah.