Let's just say that I don't get what He was driving at when he said that.

I think my reaction, had I been among the disciples would be to say to Him afterwards "Where did Moses talk about you Lord, apart from the bit about 'the prophet that will come after me' ?"

Seriously, if this were a question in an R E exam, I don't think I could write more that a short paragraph in answer. Which is worrying, if you know what I am usually like.