"Coming in a cloud with power and glory" is actually an old testament metaphor for judgement. It's not literal. Often times Jesus and even the apostles would use old testament metaphors to explain things because for people back then it made sense. It was something they could easily understand.
Those metaphors were shadows of a very real and literal event that will occur at the end of the age.
It's called the Day of the Lord.
Every eye will see Him! Literally.
29 "Immediately after the tribulation of those days the sun will be darkened, and the moon will not give its light; the stars will fall from heaven, and the powers of the heavens will be shaken. 30
Then the sign of the Son of Man will appear in heaven, and then all the tribes of the earth will mourn, and they will see the Son of Man coming on the clouds of heaven with power and great glory. 31 And He will send His angels with a great sound of a trumpet, and they will gather together His elect from the four winds, from one end of heaven to the other.
Matthew 24:29-31
This is a literal event, whereby all the tribes of the earth will literally see Him and mourn.
9 Now when He had spoken these things,
while they watched, He was taken up, and a cloud received Him out of their sight. 10 And while they looked steadfastly toward heaven as He went up, behold, two men stood by them in white apparel, 11 who also said, "Men of Galilee, why do you stand gazing up into heaven? This same Jesus, who was taken up from you into heaven, will so come in like manner as you saw Him go into heaven."
Acts 1:9-11
They literally saw Him go!
We will literally see Him Come again!
7 Behold,
He is coming with clouds, and every eye will see Him, even they who pierced Him. And all the tribes of the earth will mourn because of Him. Even so, Amen.
Revelation 1:7
and again -
10 "And I will pour on the house of David and on the inhabitants of Jerusalem the Spirit of grace and supplication;
then they will look on Me whom they pierced. Yes,
they will mourn for Him as one mourns for his only son, and grieve for Him as one grieves for a firstborn.
Zechariah 12:10
Jesus Christ will literally return to earth, and every eye will literally see Him!
JLB