First Sunday in Lent, February 18, 2018
Following Christ means taking certain steps. The first step, which responds to the call, separates the followers from their previous existence. A call to discipleship thus immediately creates a new situation. Staying in the old situation and following Christ mutually exclude each other. At first, that was quite visibly the case. The tax collector had to leave his booth and Peter his nets to follow Jesus. According to our understanding, even back then things could have been quite different. Jesus could have given the tax collector new knowledge of God and left him in his old situation. If Jesus had not been God’s Son become human, then that would have been possible. But because Jesus is the Christ, it has to be made clear from the beginning that his word is not a doctrine. Instead, it creates existence anew. The point was to really walk with Jesus. It was made clear to those he called that they only had one possibility of believing in Jesus, that of leaving everything and going with the incarnate Son of God.
-from The Cost of Discipleship, pgs. 61-62