The coming 7 year Tribulation ...Believing Christians are otta here :)

THE BIBLE CLEARLY TEACHES IT
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1 Thessalonians 4:
16 For 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:
17 Then 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.
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1 Corinthians 15:
51 Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed,
52 In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.
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Matthew 24:
40 Then shall two be in the field; the one shall be taken, and the other left.
41 Two women shall be grinding at the mill; the one shall be taken, and the other left.
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WHAT IS IT ?
The Bible teaches and describes an event where without notice The Church will in an instant be taken from the earth
Only The Church will hear the trump of God.
Only The Church will be gone
Non- believers are left behind -- welcome to your nightmare
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The Church -- Anyone who places ONLY AND ALL their faith in Christ ALONE to forgive and save them
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There are no more prophecies to be fulfilled for this event to happen
We are taught that no man knows the day or the hour that Christ returns for His Church
Mark 13 : Christ speaking
32 But of that day and that hour knoweth no man, no, not the angels which are in heaven, neither the Son, but the Father.
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But The Bible teaches the signs to look for.
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BIG $ denominations that don't teach and or reject this are hiding what exactly ?