Jesus and the Really Good Bread
[...] So they said to him, "What sign are you going to give us then, so that we may see it and believe you? What work are you performing? Our ancestors ate the manna in the wilderness; as it is written, 'He gave them bread from heaven to eat.'"
Then Jesus said to them, "Very truly, I tell you, it was not Moses who gave you the bread from heaven, but it is my Father who gives you the true bread from heaven. For the bread of God is that which comes down from heaven and gives life to the world."
It's clear from these verses that the crowd is not getting the point. The crowd wants food, then a list and finally a sign. Jesus tells them about the bread of life, which requires faith - not a list, for which he is the sign according to John. Just prior to this they wanted to make him their king; now they don't know what to make of him. He isn't fitting neatly into their idea of the messiah. Perhaps we should be open to the works of God, which are very likely not going to conform to our preconceived notions.