Did Jesus Teach a Pre-tribulation Rapture?

Did the Bible teach that Jesus raptures Christians prior to the start of the Great Tribulation? What did Jesus Himself teach? Do the scriptural passages that Tim LaHaye and Jerry Jenkins point to prove their left behind pre-tribulation rapture assertions? Do all Christians get protected from the Great Tribulation? Who does the Bible teach will get protected? Is the Great Tribulation the 'wrath to come' that Christians are promised protection from? http://www.cogwriter.com/rapture.htm
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