Lord, wilt Thou at this time restore again the kingdom to Israel? It is not for you to know the times or the seasons, which the Father hath put in His own power. – Acts 1:6, 7

You may study as you will, and pray as you please; but the times and the seasons are not committed to you. Our Lord, as man, spoke of one great event of which He did not know the time: “Of that day and that hour knoweth no man, no, not the angels which are in heaven, neither the Son, but the Father.””

Notice, next, dear friends, that it is not good for you to know the times and the seasons. That is what the Savior means when He says, “It is not for you to know.” For, first, it would distract your attention from the great things of which you have to think. It is enough for your mind to dwell upon the cross and the coming glory of your Lord. Keep these two things distinctly before you, and you need not puzzle your brains about the future. If you did know that something important was going to happen very speedily, you might be full of consternation, and do your work in a great hurry. You might be worked up into a frenzy that would spoil all your service. Or, if there was a long time to elapse before the great event, you might feel the indifference of distance. If our Lord were not to come for another hundred years (and He may not, we cannot tell) then we might say, “My Lord delayeth His coming,” and so we might begin to sleep, or to play the wanton. It is for our good to stand ever in this condition, knowing that He is coming, knowing that He will reign, knowing that certain great events will certainly transpire; but not knowing the exact times and seasons when those events are to be expected. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2330.cfm