When you jump in swimming pool and its cool after a minute or so your body gets used to the temperature of the pool. The water has not changed its temperature, but what has happened is habituation. Habituation is when we get used to things that remain the same. This type of graduated exposure appears to be how the twelve disciples reacted with Jesus. Discipleship, is not something instantaneously and casually presented, nor immediately and totally accepted by the twelve disciples. Rather, it was a gradual process of revelation and response. Discipleship, like sanctification, is progressive, not instantaneous. Invite someone to take a closer look at Christ and his church.