We are told more than once that the disciples of Jesus understood some word of his, or of Scripture, only at a later time. We are told also that a function of the Spirit is to lead the disciples into all truth, and bring his words back to their memory. So the holy word [the Bible] does not stay simply in the disciple’s memory, to be passed on (though this is very necessary); it invades the disciple’s whole personality, to bring its influence to bear on the developing situations in which that disciple becomes involved. Discipleship, that is, involves, the word of the master passing through the disciple’s memory and into all the mental and moral processes; the ways of thinking, choosing, deciding.
From The Missionary Movement in Christian History, by Andrew F. Walls, pg 50