"You have one Master, the Christ" (Mt 23:10)

137. Jesus gave careful attention to the formation of the disciples whom he sent out on mission. He presented himself to them as the only teacher and, at the same time, a patient and faithful friend. (⁴⁷⁶) He exercised real teaching "by means of his whole life". (⁴⁷⁷) He stimulated them with opportune questions. (⁴⁷⁸) He explained to them in a more profound manner what he had proclaimed to the crowds. (⁴⁷⁹) He introduced them to prayer. (⁴⁸⁰) He sent them out on a missionary apprenticeship.(⁴⁸¹) He promised to them the Spirit of his Father whom he sent to bring them to the complete truth, (⁴⁸²) and to sustain them in inevitable moments of difficulty. (⁴⁸³) Jesus Christ is "the Teacher who reveals God to Man and Man to himself, the Teacher who saves, sanctifies and guides. He is the Teacher who lives, who speaks, rouses, moves, redresses, judges, forgives and walks with us day by day on the path of history. He is also the Teacher who comes and will come in glory". (⁴⁸⁴) In Jesus Christ, Lord and Teacher, the Church finds transcendent grace, permanent inspiration and the convincing model for all communication of the faith.