Jesus added, “Therefore, stay awake, for you do not know on what day your Lord is coming” (Matt. 24:42). The verb “stay awake” is from the Greek gregoreo, which means “be on the alert, be watchful.” (Gingrich); “be watchful, vigilant, alert (MT 24.42) (Friberg); or “to remain awake because of the need to continue alert – ‘to stay awake, to be watchful.’” (Louw-Nida) Do you know of someone whose name is “Gregorio” or “Greg?” The name means, “stay alert, vigilant, watchful.”
This is the main purpose of Jesus in teaching about the future (eschatology). Jesus did not teach the future to satisfy our curiosity. Jesus did not teach the future to make us afraid. Jesus did not teach the future to make us relax until the last minute. Rather, Jesus taught us about future things so we will stay awake, be alert, and be vigilant.
Why should we stay alert for His coming? Jesus said, “For you do not know on what day your Lord is coming.”
What does it mean to stay alert for His coming? It means “being prepared” for His coming. (Hagner) It involves action, not inaction. It means activity, not passivity.
“An alarming photograph taken in the lobby of One World Trade Center shows a half-blind security guard sleeping on the job – but the security guard swears he was in fact ‘exercising’ his bad eyes.
. . . .
“‘To my knowledge, actually I was not sleeping. I was mistaken to be sleeping. I was exercising my eyes,’ he insisted to the New York Post.”
Jesus said, “Who then is the faithful and wise servant, whom his master has set over his household, to give them their food at the proper time? Blessed is that servant whom his master will find so doing when he comes” (Matt. 24:45-46). This is what it means to be prepared for His coming. The faithful servant is prepared for his master’s coming because he is working when his master arrives. He gives food for the other servants at the proper time. He is diligent. He is faithful to the task. He meets the expectation of his master.
What has your Lord commanded you to do today? What has your Lord committed to you to do today? What has your Lord challenged you to do today?
Are you called to teach the Word? Then teach the Word diligently.
Are you called to make music in the worship team? Then make music faithfully.
Are you called to share the Gospel to others? Then share the Gospel to others persistently.
Are you called to give? Then give generously.
When the Lord comes, you should be working for Him. You should be serving Him. You should be living for Him. That is what it means to be prepared for the coming of your Lord. For you do not know what day your Lord is coming!
 “Half-blind security guard caught sleeping at WTC insists was just ‘EXERCISING his eyes’ exposing another security lapse at the building that rose from 9/11’s Ground Zero.” Cited October 15, 2017. Online: http://www.dailymail.co.uk/news/article-2591303/First-line-defense-Half-blind-guard-caught-sleeping-WTC-says-just-exercising-eyes-exposing-ANOTHER-security-lapse-nations-tallest-building.html.