The Rev. Tullian Tchividjian effectively skewers the popular “left behind” theology in this article in The Worldview Church: Unfashionable: Making a Difference in the World by Being Different.
Matthew 24:37-41 is a key passage some Christians use to justify an escapist theology, approaching this world with a “Why shine the brass on a sinking ship?” attitude. In this passage Jesus likens “the coming of the Son of Man” to the time of Noah, when people “were unaware until the flood came and swept them all away.” Then Jesus gives two brief pictures of the effect of his coming: “Two men will be in the field; one will be taken and one left. Two women will be grinding at the mill; one will be taken and one left.”
These verses have been employed to support the idea that God will one day evacuate, or “rapture,” all the righteous people, leaving behind an evil world destined for annihilation. Therefore, the thinking goes, Christians should focus exclusively on seeking to rescue lost souls rather than waste time trying to fix things that are broken in this doomed world. This perspective is evidenced in a comment I read not long ago from a well-known Bible teacher: “Evangelism is the only reason God’s people are still on earth.”
But a closer look at the context reveals that in those pictures Jesus gave of men in the field and women at the mill, those “left behind” are the righteous rather than the unrighteous. Like the people in Noah’s day who were “swept away,” leaving behind Noah and his family to rebuild the world, so the unrighteous are “taken,” while the righteous are left behind. Why? Because this world belongs to God, and he’s in the process of gaining it all back, not giving it all up.
This is taken from Tchividjian’s new book, Unfashionable: Making a Difference in the World by Being Different. If this brief excerpt is any indication, the book as a whole should be worth reading.