A paraphrase of Kierkegaard (from Philosophical Fragments) that I’m borrowing from J.K.A. Smith’s Who’s Afraid of Postmodernism?:
In order to come to know the truth, the learner (disciple) must receive from the Teacher (God) not only the content of the truth but also the very condition for receiving it. The dispensation of the condition is an act of grace by the work of the Holy Spirit.