One of the functions of the Holy Spirit was to bring all things to the remembrance or knowledge of the Apostles. Though the Evangelists record most fully the events they witnessed, they record other matters of which they *could have had no knowledge except by revelation. This may have been one of them. But it is not stated that they slept all the time they were with Christ in the Garden. The account rather implies men struggling to keep awake. Christ said of them that their spirit was willing. They may have heard the few words they record, though missing the remainder of what may have been, and probably was, a long prayer.