It does teach that Church will be spared the satanic persecutions of great trib. The bible however not say the church will be removed before that tribulation period. Jesus described church being persecuted by enemy in Olivet discourse, and In Rev we again see church (the believers in Christ) being persecuted by and even overcome and killed matching what had told us.
Mat 24:9 Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake.
Mat 24:10 And then shall many be offended, and shall betray one another, and shall hate one another.
Mat 24:13 But he that shall
endure unto the end, the same shall be saved.
Mat 24:15 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand
Mat 24:16 Then let them which be in Judaea flee into the mountains:
Mat 24:17 Let him which is on the housetop not come down to take any thing out of his house:
Mat 24:18 Neither let him which is in the field return back to take his clothes.
Mat 24:19 And woe unto them that are with child, and to them that give suck in those days!
Mat 24:20 But pray ye that your flight be not in the winter, neither on the sabbath day:
Mat 24:21 For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
Kinda hard to see AoD and flee to mountains if you are raptured up to heaven before this happens.
Pretrib simply isn't in the bible. Only posttrib is there.
Rev 12:17 And the dragon was wroth with the woman,
and went to make war with the remnant of her seed, which keep the commandments of God, and have the testimony of Jesus Christ.
Rev 13:7 And
it was given unto him to make war with the saints, and to overcome them: and power was given him over all kindreds, and tongues, and nations.
That's great tribulation and it is satan persecuting the church!