Jesus made a promise to send the spirit until he came back
you sound like someone in this group of scoffers
“knowing this first, that there shall come in the last days scoffers, walking after their own lusts, and saying, Where is the promise of his coming? for since the fathers fell asleep, all things continue as they were from the beginning of the creation.
For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water: whereby the world that then was, being overflowed with water, perished:
but the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
(?whys it taking so long ?)
The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.
Seeing then that all these things shall be dissolved, what manner of persons ought ye to be in all holy conversation and godliness, looking for and hasting unto the coming of the day of God, wherein the heavens being on fire shall be dissolved, and the elements shall melt with fervent heat?
Nevertheless we, according to his promise, look for new heavens and a new earth, wherein dwelleth righteousness.”
2 Peter 3:3-7, 9-13 KJV
he’s coming back just as he left in the same manner just as he visable went up and then disappeared from sight , he will return suddenly and appear again returning in the exact same manner he left in thier sight he’s just giving people time to repent so they don’t perish with the world
“And while they looked stedfastly toward heaven as he went up, behold, two men stood by them in white apparel; which also said, Ye men of Galilee, why stand ye gazing up into heaven? this same Jesus, which is taken up from you into heaven, shall so come in like manner as ye have seen him go into heaven.”
Acts 1:10-11
They saw him go and whoever is alive will see him return many who die before that day won’t but they will have already seen him his return will be wotnessed by the whole earth when it happens