I do not disagree with what was actually said and meant. You have to take it with all other verses -"line upon line, precept upon precept".
Christ was speaking to those specifically on Earth then not seeing his flesh and blood body any more.
Rev1:7Behold,
he cometh with clouds; and
every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.
1 Thes
14For if we believe that
Jesus died and rose again, even so
them also which sleep in Jesus will God bring with him. 15For this we say unto you by the word of the Lord, that we which are alive
and remain unto the coming of the Lord shall not prevent them which are asleep.
16For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first:
17Then we which are alive
and remain shall be caught up together with them in the clouds
, to meet the Lord in the air: and so shall we ever be with the Lord.
18Wherefore comfort one another with these words.
Zech 14 is quite clear and quite literal. His feet will stand on the cloven mount of olives!
Rev 17 explains that the military forces of Earth will attempt to make war with him.
As for the cleanup crew.... Angels can be invisible -but are not always (Jacob wrestled one)...
Joel 2
1Blow ye the trumpet in Zion, and sound an alarm in my holy mountain: let all the inhabitants of the land tremble: for the day of the LORD cometh, for
it is nigh at hand;
2A day of darkness and of gloominess, a day of clouds and of thick darkness, as the morning spread upon the mountains: a great people and a strong; there hath not been ever the like, neither shall be any more after it,
even to the years of many generations.
3A fire devoureth before them; and behind them a flame burneth: the land
is as the garden of Eden before them, and behind them a desolate wilderness; yea, and nothing shall escape them.
4The appearance of them
is as the appearance of horses; and as horsemen, so shall they run.
5Like the noise of chariots on the tops of mountains shall they leap, like the noise of a flame of fire that devoureth the stubble, as a strong people set in battle array.
6Before their face the people shall be much pained: all faces shall gather blackness.
7They shall run like mighty men; they shall climb the wall like men of war; and they shall march every one on his ways, and they shall not break their ranks:
8Neither shall one thrust another; they shall walk every one in his path: and
when they fall upon the sword, they shall not be wounded.
9They shall run to and fro in the city; they shall run upon the wall, they shall climb up upon the houses; they shall enter in at the windows like a thief.
10The earth shall quake before them; the heavens shall tremble: the sun and the moon shall be dark, and the stars shall withdraw their shining:
11And the LORD shall utter his voice before his army: for his camp is very great: for he is strong that executeth his word: for the day of the LORD is great and very terrible; and who can abide it?