"Without the Holy Spirit there would be no gospel and no New Testament. When Christ left the world, he committed his cause to his disciples. But what sort of witnesses were they likely to prove? They had never been good pupils; they had consistently failed to understand Christ and missed the point of his teaching throughout his earthly ministry; how could they be expected to do better now that he had gone? Was it not virtually certain that, with the best will in the world, they would soon get the truth of the gospel inextricably mixed up with a mass of well-meant misconceptions, and their witness would rapidly be reduced to a twisting, garbled, hopeless muddle? The answer to this question is no - because Christ sent the Holy Spirit to them, to teach them all truth and so save them from all error, to remind them of what they had been taught already and to reveal to them the rest of what their Lord meant for them to learn." - J.I. Packer, Knowing God, pg 69.