Yes it is in your Bible ---you just are confused about it -----
Jesus will have actually come 3 times by the end of the Tribulation -----
Number 1 -----
He was here already in the Flesh --and had to shed His Blood to cover sin for good and die and be resurrected so He could defeat eternal death and bring back eternal life for all who believe in what He accomplisher and accept Him as their Lord and Saviour so the Holy Spirit could come and indwell us to make us Heaven bound ------
This was the only thing that had to take place so Jesus could Rapture His Church -----as before He came No one was heaven ready ---the wages of Sin was eternal death ---Hell ---all of us were going there --Sin had to be taken out for good and Jesus had to defeat Death so we could have eternal life -----
NO Sin could enter heaven we were all doomed to eternal death ----
Now all the Saints could be taken directly to Heaven ----
Number 2 -----the Rapture
Jesus then comes in a Cloud and there is a shout and command from the angels and a blast of the trumpet --so He comes with a bang ------Who is Raptured first -----the dead in Christ ---so dead Saints go first --the live Saints go next ------see Scripture below
Note verse 14 ----as that is what had to happen for the rapture to take place ------
there is no other sign that needs to happen for Jesus to rapture His Church ---he can now raise the dead Saints --------cause He defeated Death ------
14
For if we believe that Jesus died and rose again [as in fact He did], even so God [in this same way—by raising them from the dead] will bring with Him those [believers] who have fallen asleep in Jesus.
16 For the Lord Himself will come down from heaven with a shout of command, with the voice of the [a]archangel and with the [blast of the] trumpet of God, and the dead in Christ will rise first.
17
Then we who are alive and remain [on the earth] will simultaneously be caught up (raptured) together with them [the resurrected ones] in the clouds to meet the Lord in the air, and so we will always be with the Lord!
1 Thessalonians 4:13-18
Amplified Bible
Those Who Died in Christ
13 Now we do not want you to be uninformed, believers, about those who are asleep [in death], so that you will not grieve [for them] as the others do who have no hope [beyond this present life].
14
For if we believe that Jesus died and rose again [as in fact He did], even so God [in this same way—by raising them from the dead] will bring with Him those [believers] who have fallen asleep in Jesus.
15 For we say this to you by the Lord’s [own] word, that we who are still alive and remain until the coming of the Lord, will in no way precede [into His presence] those [believers] who have fallen asleep [in death].
16 For the Lord Himself will come down from heaven with a shout of command, with the voice of the [a]archangel and with the [blast of the] trumpet of God, and the dead in Christ will rise first.
17
Then we who are alive and remain [on the earth] will simultaneously be caught up (raptured) together with them [the resurrected ones] in the clouds to meet the Lord in the air, and so we will always be with the Lord!
18 Therefore comfort
and encourage one another with these words [concerning our reunion with believers who have died]
The 7 year tribulation happens after the Rapture --------
Number 3 ----The 2ND Coming -------
Jesus comes Secretly no one knows the Day or Hour ---there is no fan fare --no knowing
- and He comes back with all His Saints to fight Satan ---scripture here ---
So if the Saints are here for the Tribulation then He can't bring them with Him as they would be still here ----
ZECHARIAH 14:3-5
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 of it 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 you shall flee
to the valley of the mountains; for the valley of the mountains shall reach to Azal: yes, you shall flee, like you 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 you.
1 THESSALONIANS 3:13 (Paul)
13 To the end he may establish your hearts blameless in holiness before God, even our Father,
at the coming of our Lord Jesus Christ with all his saints.
JUDE 14-15
14 And
Enoch also, the seventh from Adam, prophesied of these, saying, Behold,
the Lord comes with ten thousands of his saints
15
To execute judgment upon all, and to convince all that are ungodly among them of all their ungodly deeds which they have ungodly committed, and of all their hard speeches which ungodly sinners have spoken against them.
The rapture and the 2nd Coming are 2 separate Events ------one comes with a fan fare and one comes secretly -----