Jesus tries to get the people to focus on the spiritual.
Those who refused to believe that Jesus was the Messiah would have had to come up with a reason for the miraculous works he was doing.
God is patient, even to unbelieving hard hearted people.
Some people will go to great lengths to explain away the power of God.
Believe Jesus.
Realize that for some apologetics, prophecy, and even miracles will not be enough to convince them that Jesus is indeed the only way to God.
Father, increase my faith.
