In the book of John chapter 14 Jesus promised that He would not leave His disciples alone, but would send them the Comforter, the Holy Spirit, who would be with them every day.
The first thing we should know is that God keeps His promises, and we see this great promise fulfilled in the book of Acts, but before it was fulfilled, Jesus reminded them that this was going to happen:
6 When they therefore were come together, they asked of him, saying, Lord, wilt thou at this time restore again the kingdom to Israel?
7 And he said unto them, It is not for you to know the times or the seasons, which the Father hath put in his own power.
8 But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.
Those who were gathered there had a question that made them very curious and intrigued, and it was about the restoration of Israel. In the same way we also have certain questions and we need an answer, but we do not finish realizing that those things are not the ones that deserve attention at the moment.
And that’s why Jesus told them that it just wasn’t up to them to know those things. Instead, in the next verse He reveals something much more important to them than that question, and it is the promise of the Holy Spirit, and that they would be witnesses to Him in all nations.
Sometimes we want to know many things, such as the meaning of the trumpets of the Apocalypse, of the horses, etc. But we have things in front of our own eyes, to which we should pay close attention and we do not.
O dear friend, we have the promise of the Holy Spirit, and Jesus has promised to be with us until the end. May this serve as encouragement in these days and that we can be firm in Him.