How many evils in this life which can be escaped by prayer! How many fearful temporal calamities can be mitigated, if not wholly relieved, by prayer! Notice how, amid the excesses and stupefying influences to which we are exposed in this world, Christ charges us to pray: “And take heed to yourselves, lest at any time your hearts be overcharged with surfeiting, and drunkenness, and cares of this life, and so that day come upon you unawares. “For as a snare shall it come on all them that dwell on the face of the whole earth. “Watch ye therefore and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.” In view of the uncertainty of Christ’s coming to judgment, and the uncertainty of our going out of this world, He says: “But of that day and that hour knoweth no man, no, not the angels which are in Heaven, neither the Son, but the Father. Take ye heed, watch and pray, for ye know not when the time is.” We have the words of Jesus as given in His last interview with His twelve disciples, found in the Gospel of John, chapters fourteen to seventeen, inclusive. These are true, solemn parting words. The disciples were to move out into the regions of toil, and peril, bereft of the personal presence of their Lord and Master. They were to be impressed that prayer would serve them in everything, and its use, and unlimited possibilities would in some measure supply their loss, and by it they would be able to command all the possibilities of Jesus Christ and God the Father. It was the occasion of momentous interest to Jesus Christ. His work was to receive its climax and crown in His death and His resurrection. His glory and the success of His work and of its execution, under the mastery and direction of the Holy Spirit, was to be committed to His apostles. To them it was an hour of strange wonderment and of peculiar, mysterious sorrow, only too well assured of the fact that Jesus was to leave them. All else was dark and impalpable.