Jesus Christ will return personally, bodily, and visibly.
This is the floor. Not his influence returning, not his cause triumphing, not a spiritual arrival perceived only by the devout — him, in a body, seen.
The angels at the ascension said it as plainly as it can be said: 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. This same Jesus. In like manner. The men watching had just seen a physical person leave physically.
John says every eye shall see him, and they also which pierced him. Jesus himself said the coming would be as unmistakable as lightning shining from the east to the west — precisely so that no one could claim a secret, private, or merely inward arrival.
This matters more than it first appears. A Christ who returns only spiritually leaves history unfinished and evil unanswered. A Christ who returns bodily means the world's wrongs get addressed in the same world where they happened.
““Men of Galilee,” they said, “why do you stand here looking into the sky? This same Jesus, who has been taken from you into heaven, will come back in the same way you have seen Him go into heaven.””
Acts 1:11 — shall so come in like manner→
“Behold, He is coming with the clouds, and every eye will see Him—even those who pierced Him. And all the tribes of the earth will mourn because of Him. So shall it be! Amen.”
Revelation 1:7 — every eye shall see him→
“For just as the lightning comes from the east and flashes as far as the west, so will be the coming of the Son of Man.”
Matthew 24:27 — as the lightning→
“For the Lord Himself will descend from heaven with a loud command, with the voice of an archangel, and with the trumpet of God, and the dead in Christ will be the first to rise.”
1 Thessalonians 4:16 — the Lord himself shall descend→