As vessels of Christ, we are those who have chosen to extol the Gospel above those things which we value on this earth. By taking up our "cross" and following Christ, we seemingly accept a life of ridicule and marginalization by the standards of the world.
This is the message that leads to Matthew 10:40-42, where Christ offers a positive slant on the life of a Christian disciple. When the disciples were given their commissioning in vv. 5-15, Jesus reminded them that they are to be these vessels of Christ's teachings, and when they effectively evangelize, though they may face strife, those who accept what they say not only receive that message, but also Christ and God who sent him. The acceptance of the Christian and the Christian message carries with it a reward for both the one evangelizing and the one receiving the Gospel. God will reward each his/her due for serving Christ and the Kingdom of God.
For the disciples this charge was clear, but for those of us entering into ministry, are we spreading Christ's message in order to receive our reward or so that the Kingdom of God can grow and produce? The question of motive drives us to a self-awareness of how we evangelize to others, especially in a world where evangelizing is often tainted by money and greed. In Matt. 10:8b Christ reminds the disciples that, "You received without payment, give without payment"; thus, the reward Christ envisions for faithful discipleship should remain secondary as long as the work of the Gospel remains incomplete.