Mt 24:40 Then shall two be in the field; the one shall be TAKEN, and the other LEFT.

Ge 7:23 And every living substance was destroyed which was upon the face of the ground, both man, and cattle, and the creeping things, and the fowl of the heaven; and they were destroyed from the earth: and Noah only REMAINED [], and they that were with him in the ark.

2Ki 19:30 And the REMNANT that is escaped of the house of Judah shall yet again take root downward, and bear fruit upward.

Ge 32:8 And said, If Esau come to the one company, and smite it, then the other company which is LEFT shall escape.

Eze 6:8 Yet will I LEAVE a remnant, that ye may have [] that shall escape the sword among the nations, when ye shall be scattered through the countries.

Zec 13:8 And it shall come to pass, that in all the land, saith the LORD, two parts therein shall be cut off and die; but the third shall be LEFT therein.

Zec 14:16 And it shall come to pass, that every one that is LEFT of all the nations which came against Jerusalem shall even go up from year to year to worship the King, the LORD of hosts, and to keep the feast of tabernacles.

Eze 14:22 Yet, behold, therein shall be LEFT a remnant that shall be brought forth, [] sons and daughters: behold, they shall come forth unto you, and ye shall see their way and their doings: and ye shall be comforted concerning the evil that I have brought upon Jerusalem, [] concerning all that I have brought upon it.

Isa 1:9 Except the LORD of hosts had LEFT unto us a very small remnant, we should have been as Sodom, and we should have been like unto Gomorrah.

Jer 31:2 Thus saith the LORD, The people which were LEFT of the sword found grace in the wilderness; even Israel, when I went to cause him to rest.

Mic 4:7 And I will make her that halted a REMNANT, and her that was cast far off a strong nation: and the LORD shall reign over them in mount Zion from henceforth, even for ever.

Mic 5:7 And the REMNANT of Jacob shall be in the midst of many people as a dew from the LORD, as the showers upon the grass, that tarrieth not for man, nor waiteth for the sons of men.

SUMMARY: Apparently, in the separation of wheat and tares that comes after the tribulation, the believers are the ones LEFT. They escape the judgment that comes on the unsaved church Babylon. They are not "left behind" as is often the worldly picture; this is a spiritual separation, not a literal rapture.