Question: "Is it possible to know when Jesus is coming back?"
Answer: Matthew 24:36-44 declares, “No one knows about that day or hour, not even the angels in heaven, nor the Son, but only the Father…Therefore keep watch, because you do not know on what day your Lord will come…So you also must be ready, because the Son of Man will come at an hour when you do not expect Him.” At first glance, these verses would seem to provide a clear and explicit answer to the question. No, no one can know when Jesus is coming back. However, those verses do not say that no one will ever be able to know when Jesus will return. Most Bible scholars would say that Jesus, now glorified in heaven, knows the timing of His return, indicating that the phrase “nor the Son” does not mean Jesus will never know when He will return. Similarly, it is possible that, while Matthew 24:36-44 indicates that no one at that time could know the timing of Jesus’ return, God could reveal the timing of Jesus’ return to someone in the future.
In addition, there is Acts 1:7, which states, "It is not for you to know the times or dates the Father has set by His own authority." This was said by Jesus after the disciples asked Him if He was at that time going to restore the kingdom to Israel. This would seem to confirm the message of Matthew 24. It is not for us to know the timing of Jesus coming back. But there is also the question of which return these passages are referring to. Are they speaking of the Rapture or the Second Coming? Which return is unknowable—the Rapture, the Second Coming, or both? While the Rapture is presented as being imminent and mysterious, the timing of the Second Coming could potentially be known based on end-times prophecy.
With that said, let us be abundantly clear: we do not believe that God has revealed to anyone when Jesus is coming back, and we see nothing in Scripture which indicates that God will ever reveal to anyone when Jesus is coming back. Matthew 24:36-44, while spoken directly to the people in Jesus’ time, also contains a general principle. The timing of Jesus’ return and the end of the age is not for us to know. Scripture nowhere encourages us to try to determine the date. Rather, we are to “keep watch, because we do not know on which day our Lord will come” (v. 42). We are to “be ready, because the Son of Man will come at an hour when we do not expect Him” (v. 44). The force of Jesus’ words diminishes if at some point in the future someone will be able to determine when He is coming back. If the date is discovered, we no longer need to “keep watch” or “be ready.” So, with the principle of Matthew 24:36-44 in mind, no, it is not possible for anyone to know the date that Jesus is coming back.
Despite this clear biblical principle, many throughout Christian history have attempted to prophesy the date that Jesus is coming back. Many such dates have been proposed, and all of them have been wrong. Most, if not all, of those who have predicted specific dates for Jesus’ return have had questionable, if not heretical, doctrinal positions on other issues. As it was said above, based on Matthew 24:36 and Acts 1:7, it is not God’s desire for us to calculate the day that Jesus is coming back. Anyone who undertakes such a task is, if nothing else, misguided.
The key points are (1) the Bible nowhere encourages us to attempt to discover the timing of Jesus’ return and (2) the Bible gives no explicit data by which the timing of Jesus’ return can be determined. Rather than developing wild and speculative calculations to determine when Jesus is coming back, the Bible encourages us to “keep watch” and “be ready” (Matthew 24:42-44). The fact that the day of Jesus’ return is unknown should motivate us to live every day in light of the imminence of Christ’s return.