Mark 13:37

V. 37. And what I say unto you I say unto all, Watch.

Much more important, however, is the necessity which is laid upon all the disciples of Christ not to become drowsy, listless, and negligent in the Master's work or in constant watching for His coming.

Let every Christian write upon the portals of his heart that one word: Watch! It is very true, indeed, that the unbelievers think it a huge joke to ridicule the belief of the Christians about the coming of Judgment Day: Where is the promise of His coming? for since the fathers fell asleep, all things continue as they were from the beginning of creation, 2 Pet. 3, 3-7.

At the same time, however, those very scoffers are the first ones, during a storm or at the time of an earthquake, or in the presence of some other extraordinary manifestation of God in nature, to fall upon their knees and implore God's mercy. It is absolutely safe to stand on God's word and to heed His warning at all times: Watch!

Summary. Answering several questions of His disciples, Jesus foretells the destruction of Jerusalem and the Temple, predicts the devastation of the Jewish country, mentioning a number of signs that would precede such judgment of God, also prophesies of the end of the world and tells several short parables to impress upon every one the necessity to watch.