-30, what he considers to be "the essential discipleship text."  He makes seven key observations. One the essential verb of discipleship and ministry - "come." Two - the essential noun of discipleship - "Me." Three - the people Jesus likes to call - "weary and overburdened." Four - the essential promise - "I will rest you." Five - the essential symbol - yoke (surprise!). Six - the essential blessing - "My yoke." Seven - the essential posture - "learn."