In his letter to the Roman Church Paul emphasizes "Faith", not behavior, as the key to claiming the gift of Salvation.
Saul (Paul) was transformed from a Christian killer into a Christian killed, as a leader of the early Church.
Mark shows that even those closest to Jesus - the Disciples - had a hard time grasping the implications of who Jesus was.
True Rest - 'soul rest' - can be found in the presence of Jesus - whether we are extraordinarily busy or lounging next to the pool.
Zacchaeus didn't change his life and to earn Jesus' love... Jesus loved him first and because of that Zacchaeus changed.... He found true "Joy" in Jesus.