The key word is MEET
When you meet up someone then the next question should be where we going from there? Remember the angel said Jesus will come again likewise so his feet needs to touch the mount of Olives.
Acts 1: 9 - 12
9 And when he had spoken these things, while they beheld, he was taken up; and a cloud received him out of their sight.
10 And while they looked stedfastly toward heaven as he went up, behold, two men stood by them in white apparel;
11 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.
12 Then returned they unto Jerusalem from the mount called Olivet, which is from Jerusalem a sabbath day's journey.
Remember Jesus LEFT Heaven and the Saints rushed to meet him in the air but Jesus feet still needs to touch the mount of Olives and when he comes he coming with power as the LION of the tribe of Judah and he is making war with his Saints.
Zecahariah 14: 1 - 5, 9
1 Behold, the day of the Lord cometh, and thy spoil shall be divided in the midst of thee.
2 For I will gather all nations against Jerusalem to battle; and the city shall be taken, and the houses rifled, and the women ravished; and half of the city shall go forth into captivity, and the residue of the people shall not be cut off from the city.
3 Then shall the Lord go forth, and fight against those nations, as when he fought in the day of battle.
4 And his feet shall stand in that day upon the mount of Olives, which is before Jerusalem on the east, and the mount of Olives shall cleave in the midst thereof toward the east and toward the west, and there shall be a very great valley; and half of the mountain shall remove toward the north, and half of it toward the south.
5 And ye shall flee to the valley of the mountains; for the valley of the mountains shall reach unto Azal: yea, ye shall flee, like as ye fled from before the earthquake in the days of Uzziah king of Judah: and the Lord my God shall come, and all the saints with thee.
Where did GOD get all these Saints from? It's simple they met him in the air that you pointed out in 1 Thessalonians 4. Now we not done yet this is best part.
9 And the Lord shall be king over all the earth: in that day shall there be one Lord, and his name one.
Man that's beautiful, that's we pray THY KINGDOM COME. Tired of these corrupt politicians, Earth will finally have the Saviour as our ruler. Praise the LORD. amen.