This is Matthew/Levi's testimony from Mark 2:13-22. He reflects on the revolution that is Jesus and how being called by Jesus changes everything. Suddenly Jesus becomes the priority in your life, you start to share his values and follow him wherever he goes. Matthew urges us not to slip back into self-driven religiosity, but instead to get really close to Jesus and go where He goes - to the messy, needy, irreligious folks that Jesus so loves to befriend.