1 Cor. 15:50-54
Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption. Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed, In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed. For this corruptible must put on incorruption, and this mortal must put on immortality. So when this corruptible shall have put on incorruption, and this mortal shall have put on immortality, then shall be brought to pass the saying that is written, Death is swallowed up in victory.
Luke 18:8-9
And shall not God avenge his own elect, which cry day and night unto him (Rom. 8:15; Gal. 4:6), though He bear long with them? I tell you that he will avenge them speedily. Nevertheless when the Son of man cometh, shall He find faith on the earth?
In these last days truth is hidden from those in false religion; their eyes have been blinded (John 12:40), and their ears cannot hear (Mat. 13:15; Prov. 20:12); for they are the "goats" (Mat. 25:32-34), but the "sheep" have hearing ears (John 10:27).
1 Thes. 4:16-18
because the Lord himself, in a shout, in the voice of a chief-messenger, and in the trump of God, shall come down from heaven, and the dead in Christ shall rise first, then we who are living, who are remaining over, together with them shall be caught away in clouds to meet the Lord in air, and so always with the Lord we shall be; so, then, comfort ye one another in these words. (YLT)
Rev. 1:7
Behold, He cometh with clouds; and every eye shall see Him, and they also which pierced Him:
(These are the elect ones Christ died for (Mat. 1:21; Rom. 8:33-34): hence they pierced Him (Isaiah 53:6); they are the ones "that look for Him" (Heb. 9:28); "every eye" of His elect ones will see Him (Rev. 22:4):
and all kindreds of the earth shall wail because of Him. Even so, Amen.
(Those left behind will wail (Rev. 1:7; kopto; cut off; beat one's breast in grief); and they will mourn (kopto; Mat. 24:30); they "looketh not for Him" (Mat. 24:50) and they will accuse God:
Mat. 7:22-23
Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works? And then will I profess unto them, I never knew you: depart from me, ye that work iniquity. (Mat. 25:41)
1 John 3:2
Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when He shall appear, we shall be like Him; for we shall see Him as he is.
But not the rest of the inhabitants of the earth, the non-elect; they will not see Him as He is, only the "sign" (the catching up of all the elect) of His coming, because they are still in their corruptible bodies.
Mat. 24:30-31
And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they (His elect) shall see the Son of man coming in the clouds of heaven with power and great glory. And He shall send His angels with a great sound of a trumpet, and they shall gather together His elect from the four winds, from one end of heaven to the other.
TGBTG!