Alignment
Just the other day, I went shopping at IKEA, and in the self-serve area, I managed to grab a shopping cart that had one of those wheels that seemed to have a mind of its own. Every time I hit a little seam in the concrete, the cart would dramatically swerve off in the direction of the rut. It ended up being more of a workout than a shopping experience.
Now, I suppose that I could have kicked that wheel repeatedly until it fell off, since it was causing my cart to stumble, but in the end, I just kept pulling the cart back into alignment. It was more work, but I was able to keep the cart in one piece that way.
The Food That Endures
So, what Jesus is saying to them here is basically, you are not looking for me because you saw the signs and recognized that I am the Messiah. You are only looking for me because of what I did for you, and what you think I can do for you in the future. You’re not concerned about me as God’s Chosen, you’re concerned about me as your meal ticket, your provider of the miraculous, your servant who does what you want.