'This is the carpenter's son, surely? This is the carpenter, surely, the son of Mary?'

This, which was said of Jesus, may very well be said of you, in a tone half of astonishment, half of mockery, when you really decide to carry out God's will, to be an instrument: 'But, isn't this "So-and-so"...?'

Say nothing. And let your works confirm your mission.