Jesus sees Levi, a man no one trusts, sitting at his stand on the shore of Galilee and he says to him, "Come Follow Me." How could Jesus do such a thing? Tax collectors were lumped into the same category as murderers and theives.
A new wilderness prophet has arrived speaking on behalf of God but he knows he's unworthy to even take off the sandals of Jesus. And he's just the start of a long line of people who are unworthy to follow Jesus but Jesus extends an invitation to walk with him anyway.