Now it happened on a certain day, as He was teaching, that there were Pharisees and teachers of the law sitting by, who had come out of every town of Galilee, Judea, and Jerusalem. And the power of the Lord was present to heal them. (Luke 5:17)
Who is Jesus? To answer this question, one must look at all the extraordinary miracles and deeds He performed before many witnesses. These all affirm His declaration that He is who He said He was: God in the flesh. If the evidence is clear, why did so may in Jesus's time reject Him, just as many reject Him today?
The answer is simple: prejudice. Sin has corrupted every part of a person, including the judgment of facts. Unregenerated people do not have a detached mind that can assess the evidence because they are bound in sin. They cannot have a truly open mind to the claims of Christianity and the Bible.
Is there a way out of this predicament? No one can come to know God through his own efforts, but by the grace of God, a person's eyes can be opened so to see the truth. No one can fight his sin on his own, but by God's grace, an individual can be set free. This is the message of hope and peace in the Gospel for all who believe in Jesus. Man does not have to suffer for his sin because Jesus has come to atone for the sinner as his Substitute.