Here I go again; Jesus showed in Matthew 24:29-31 and Mark 13:24-27 that the time of His future coming to gather His saints will be AFTER... the tribulation.
Matthew 24:29-31 KJV
29) Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:
30) 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 shall see the Son of man coming in the clouds of heaven with power and great glory.
31) 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.
Joel 2:30-3:1 KJV
30) And I will shew wonders in the heavens and in the earth, blood, and fire, and pillars of smoke.
31) The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the LORD come.
32) And it shall come to pass, that whosoever shall call on the name of the LORD shall be delivered: for in mount Zion and in Jerusalem shall be deliverance, as the LORD hath said, and in the remnant whom the LORD shall call.
1) For, behold, in those days, and in that time, when I shall bring again the captivity of Judah and Jerusalem,
"Bring again the captivity" is idiom for bringing the captive back home.
Matthew 25:31-32 KJV
31) When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit upon the throne of his glory:
32) And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats:
Joel 3:2 KJV
2) I will also gather all nations, and will bring them down into the valley of Jehoshaphat, and will plead with them there for my people and for my heritage Israel, whom they have scattered among the nations, and parted my land.
"plead" here is to give legal address being their Judge.
Jesus comes in power and glory, and sends His angels to gather "the chosen". Later, the nations will be gathered and judged.
Jesus prophesied fully in keeping with the prophets before Him, the Spirit of Christ in them speaking.
Ezekiel 39:25-29 KJV
25) Therefore thus saith the Lord GOD; Now will I bring again the captivity of Jacob, and have mercy upon the whole house of Israel, and will be jealous for my holy name;
26) After that they have borne their shame, and all their trespasses whereby they have trespassed against me, when they dwelt safely in their land, and none made them afraid.
27) When I have brought them again from the people, and gathered them out of their enemies' lands, and am sanctified in them in the sight of many nations;
28) Then shall they know that I am the LORD their God, which caused them to be led into captivity among the heathen: but I have gathered them unto their own land, and have left none of them any more there.
29) Neither will I hide my face any more from them: for I have poured out my spirit upon the house of Israel, saith the Lord GOD.
Much love!