But it is not only wakefulness, but also watchfulness which the apostle enjoins in the counsel of our text. The soldier of Jesus is to be awake and watchful with all the keen quest of a sentinel peering about him night and day. But our watchfulness must be intelligent and disciplined, and we must carefully survey the entire field. We must keep awake, and we must diligently watch for all enemies of the sanctified brotherhood of the race, as a sentry would watch every suspicious movement in the night. What are the real enemies behind all the appalling desolation and sorrow of our time? Is it militarism? Then "Watch ye!" Is it something deeper than militarism? Is it racial animosity and jealousy and prejudice? Then "Watch ye!" Is it something even deeper than racial antipathy? Is it a profound and deadly materialism in all the nations--a materialism which has been tricked out in the ribbons of culture, and disguised in the glamour of progress? Then "Keep awake, Watch ye!" Or is it a faithless church, muttering many shibboleths, but confessing no vital faith; a church which has been too much a pretense, offering no strong moral and spiritual preservatives, and supplying no saving salt to social fellowships, and, therefore, not exercising any restraint upon moral degeneracy and corruption? "Keep awake, and Watch ye!" And amid all the horrors and agonies of our day fasten your eyes upon the real enemy of the Lord Jesus, the outstanding antagonist of His kingdom of righteousness and truth.