Semuon and Sungrak Church is teaching about “A Pre-Tribulation Rapture” for the saints.

Christians went through many tribulations and persecutions through over 2000 years. Besides of that, the Bible also clearly says about “a great tribulation”.

For then there will be a great tribulation, such as has not occurred since the beginning of the world until now, nor ever will.  (Matt 24:21,NASB)

But nobody knows about that day, but one thing seems to mention clearly that the righteous people will have rapture before a great tribulation like Noah entered the ark before the flood.

But of that day and hour no one knows, not even the angles of leaven, nor the Son, but the Father alone. For the coming of the Son of Man will be just like the days of Noah. For the coming of the Son of Man will be just the days of Noah. For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noah entered the ark. (Matt 24:36-39) 

The term of “Rapture” described as the event on earth, actually this will be happened at the same time as “Jesus’ coming in the air”.

For the Lord Himself will descend from heaven with a shout, with the voice of the archangel and with the trumpet of God, and the dead in Christ will rise first. Then we show are alive and remain will be caught up together with them in the clouds to meet the Lord in the air, and so we will shall always be with the Lord. (1 Thess 4:16,17)

The rapture could be also referenced as “the first resurrection of saints” in the revelations. Those who attend the first resurrection are dedicated saints not just believers.

Those who call on believers, the name of Jesus Christ, but not in Christ, will be left in this land when they are not in the first resurrection when Jesus returns in the air. Jesus said to them, “At that time two men will be in the field, one will be taken away, the other abandoned, the two women grinding the hawk, one will be taken away and the other abandoned” (Matthew 24: 40 ~ 41). One is never talking about an unbeliever to be left behind. If a person with faith is not recognized as a saint, if he doesn’t have the faith to beheaded because of the testimony of Jesus and because of the word of God, he will not be taken away when he comes again.

Then I saw thrones, and they sat on them, and judgment was given to them And I saw the souls of those who had been beheaded because of their testimony of Jesus and because of the word of God, and those who had not worshiped the beast or his image, and had not received the mark on their forehead and on their hand; and they came to life and reigned with Christ for a thousand years.
The rest of the dead did not come to life until the thousand years were completed. This is the first resurrection. (Revelations 20:4,5)

After the rapture, there will be a great tribulation on the earth. The period of great tribulation will be five months.

Then the fifth angel sounded, and I saw a star from heaven which had fallen to the earth; and the key of the bottomless pit was given to him.
He opened the bottomless pit, and smoke went up out of the pit, like the smoke of a great furnace; and the sun and the air were darkened by the smoke of the pit.
Then out of the smoke came locusts upon the earth, and power was given them, as the scorpions of the earth have power.
They were told not to hurt the grass of the earth, nor any green thing, nor any tree, but only the men who do not have the seal of God on their foreheads.
And they were not permitted to kill anyone, but to torment for five months; and their torment was like the torment of a scorpion when it stings a man.  … They have tails like scorpions, and stings; and in their tails is their power to hurt men for five months. (Revelations 9:1~5)

Israelites will repent and endure through a great tribulation. They are mentioned as ‘the elect’, for whom God shorten the days.

“For then there will be a great tribulation, such as has not occurred since the beginning of the world until now, nor ever will. Unless those days had been cut short, no life would have been saved; but for the sake of the elect those days will be cut short.

The “the elect” here refers to the Israelites. They will not fall as easily as the Gentiles at the time of the tribulation, because they are suffering from the flesh because of the promise given by God, and if the duration of the tribulation would not shorten, they will have to perish, but God will limit the day of trouble for them.

After great tribulation, Jesus and the first resurrected people will come down (from the air) to this earth. At that time all tribes of the earth will see the Son of Man coming on the clouds of the sky with power and great glory.

“But immediately after the tribulation of those days THE SUN WILL BE DARKENED, AND THE MOON WILL NOT GIVE ITS LIGHT, AND THE STARS WILL FALL from the sky, and the powers of the heavens will be shaken.
“And then the sign of the Son of Man will appear in the sky, and then all the tribes of the earth will mourn, and they will see the SON OF MAN COMING ON THE CLOUDS OF THE SKY with power and great glory. (Rev 24:29, 30)

The saints who are in the first resurrection and stay in the air will come with him when Jesus comes on earth and will reign as priests of God and of Christ during the millennium. In other words, they will teach and guide the Israelites as they did past prophets. In the millennium, the devil cast out into the abyss (bottomless pit).

In the millennial kingdom, people will live long and healthy, and by the time of a thousand years they will be full of people on the earth (Isaiah 65:20). They will have faith through the education of the Saints, but it is not by the Holy Spirit. Therefore, they also must confess their faith in the working environment of the devil. At that time, those who keep faith and those who throw away will be divided, and one will go to heaven and the other to hell.

When the millennial kingdom comes to an end, the devil will come out of the abyss and deceive the world once again. Revelation 20: 7-8 says,

“When the thousand years are completed, Satan will be released from his prison, and will come out to deceive the nations which are in the four comers of the earth.” (Rev 20:7)

When the delusion is over, the devil will be thrown into hell, and there will be a second resurrection. The Saints will participate in the First Resurrection with the Second Coming of the Lord, but among the believers, in the tribulation they will keep faith until the end, and the dead will be involved in the Second Resurrection. Between the first resurrection of the saints and the resurrection of believers, there is a time interval of one thousand years. In the other words, not-committed-believers could go through the great tribulation with unbelievers and Israelites.

So we can conclude that “A Pre-Tribulational Rapture” only for the saints. For some believers, those not have sufferings/beheaded because of their testimony of Jesus and the word of God, “A After-Tribulational Rapture” will be happened.

I saw the souls of those who had been beheaded because of their testimony of Jesus and because of the word of God, and those who had not worshiped the beast or his image, and had not received the mark on their forehead and on their hand; and they came to life and reigned with Christ for a thousand years.
The rest of the dead did not come to life until the thousand years were completed. This is the first resurrection. (Revelations 20:4,5)