Why should someone become a disciple of Christ? The preacher can contrast earthly authorities and the authority of Christ, who became a servant. See John 13:12–17, Philippians 2:5–11.
What will happen when someone becomes a disciple? He will acknowledge the authority of Christ.
18 Jésus, s'étant approché, leur parla ainsi: Tout pouvoir m'a été donné dans le ciel et sur la terre.