‘”So I will prove to you that the Son of Man has the authority on earth to forgive sins.” Then Jesus turned to the paralyzed man and said, “Stand up, pick up your mat, and go home!”’ (Luke 5:24 NLT).

CHRIST’S MIRACLES ARE PROOFS OF HIS DIVINITY
The Pharisees were upset by Jesus telling a paralyzed man that his sins were forgiven. They said to themselves that he had committed blasphemy because only God had the authority to forgive sins. Jesus knew their thoughts, so he asked them which is easier to say ‘Your sins are forgiven,’ or ‘Stand up and walk’? Then, without pause, he commanded the paralyzed man to stand up and walk. He said that this miracle should “prove” his authority as the “Son of Man” (A Messianic title).
 
Jesus offered many “proofs” of His divinity. That’s why the apostle John called Christ’s miracles, “signs” in his gospel. Sign’s don’t point to themselves. They identify the place, person or thing. Jesus’ miracles were signs pointing to His identity as the Messiah, both Son of Man and Son of God. They were proofs that He had the authority of God because He is God.