take a look at the Greek word for "he saw" in verse 36, if i remember right it is the word for "actually took the time to look in the eye" rather than how we usually see the sick/injured/homeless/etc. compassion is another good greek word.

you could do a lot with "like sheep without a shephard" and "but the workers are few", but i think the most intriging part is that Jesus prays for something, as if God is in control, then later in the Gospel he sends the disciples out two by two to minister, in the same way that workers would be sent out into a field by the farmer.