As with all such things, each view has scriptural support depending on what you want to emphasize and what you want to ignore. The pre-tribulation view has to ignore a lot, like Matthew 13.

[quote:qdxsy9xn]Another parable he proposed to them, saying: The kingdom of heaven is likened to a man that sowed good seed in his field. But while men were asleep, his enemy came and oversowed cockle among the wheat and went his way. And when the blade was sprung up, and had brought forth fruit, then appeared also the cockle.

And the servants of the good man of the house coming said to him. Sir, didst thou not sow good seed in thy field? Whence then hath it cockle? And he said to them: An enemy hath done this. And the servants said to him: Wilt thou that we go and gather it up? And he said: No, lest perhaps gathering up the cockle, you root up the wheat also together with it. Suffer both to grow until the harvest, and in the time of the harvest I will say to the reapers: [b:qdxsy9xn]Gather up first the cockle, and bind it into bundles to burn, but the wheat gather ye into my barn.[/b:qdxsy9xn]

He that soweth the good seed is the Son of man. And the field is the world. And the good seed are the children of the kingdom. And the cockle are the children of the wicked one. And the enemy that sowed them, is the devil. But the harvest is the end of the world. And the reapers are the angels. [b:qdxsy9xn]Even as cockle therefore is gathered up, and burnt with fire: so shall it be at the end of the world.[/b:qdxsy9xn]

[b:qdxsy9xn]The Son of man shall send his angels, and they shall gather out of his kingdom all scandals, and them that work iniquity. And shall cast them into the furnace of fire[/b:qdxsy9xn]: there shall be weeping and gnashing of teeth. Then shall the just shine as the sun, in the kingdom of their Father.

[b:qdxsy9xn]So shall it be at the end of the world. The angels shall go out, and shall separate the wicked from among the just. And shall cast them into the furnace of fire[/b:qdxsy9xn]: there shall be weeping and gnashing of teeth.

(Matthew 13:24-30,37-43,49-50)[/quote:qdxsy9xn]
Jesus shares in no uncertain terms that the angels shall separate the evil from among the good and cast them into fire. Pre-tribulation is the exact opposite.