Mark 6:1-6, v 6 And he marveled because of their unbelief
Marvel - to wonder at
Generally, Jesus is not surprised by the world and its workings. Usually others are marveling at Him - at His words, His power, His miracles, authority and preaching. This is, perhaps, in reference to the finite mind of man that cannot comprehend the mysteries of God. But when Jesus is marveling at the unbelief of those who have known him for years, this is no compliment. Is it comparable to when one of my children do something amazingly foolish, leaving me thinking, "Did that really just happen?" I'm often not "surprised" by their foolishness, but can experience incredulity as I witness certain actions. Is this how Jesus felt - amazed, though not surprised?
In the end, he left his hometown to minister elsewhere, because their unbelief hindered Him. Though Jesus is now raised on high, unhindered by all but his own patience, I want to be cautious about being a hindrance - I'd much rather the Lord work through me, rather than in spite of me. I'm sure I give him much foolishness to marvel at, but I pray that a habit of acting out of unbelief is not one of them.