Most of this is good, basic cultural background on early Judaism.  But I disagree with his interpretation on 134. 

Agreed - Jesus called the not-good-enough, and he continues to do this today.  But it's not so much a matter of demonstrating how the not-good-enough are really, deep down inside good enough.  Jesus isn't in the business of confidence building, per se.  Rather, Jesus understands that in our weakness, his "power is made perfect" (2Corinthians 12:9).  In other words, when people see Jesus' followers doing amazing things, causing cures, speaking boldly with little or no formal education, travelling over the world and giving their lives for the sake of their beliefs, it's obvious that these folks aren't equipped to do this on their own volition.  They aren't smart enough.  They aren't wise enough.  They aren't savvy enough.  They aren't skilled enough.  What people should see through our weakness is the strength of Christ within us.

So it's not that Jesus is disappointed that his disciples haven't discovered their inner strength and capabilities and started utilizing them.  Rather, he's disappointed that they don't trust *his* strength and *his* resources to see them through anything - whether it's walking on water or speaking to Roman officials. 

Jesus knew these guys, these simple men that he called to be his disciples.  And he did firmly believe that they could do what he did.  But he believed it because he knew what he could do through them when they allowed him.  He wasn't uncovering diamonds in the rough, so that people could admire these diamonds and wonder how they never saw what was right under their noses all this time.  Rather, Jesus deliberately calls the ordinary - jars of clay (2Corinthians 4:7)- to demonstrate the extraordinary power of God.

Jesus believes that we can do what he did, but only because he is *in* us.