Without getting too deep into tribulation theories, Revelation 3:10 states Jesus will “keep you (Christians) from the hour of trial that is going to come on the whole world to test the inhabitants of earth.” The leading theory is the rapture will occur just before the beginning of the 7-year tribulation period. This belief is driven by the understanding “the hour of trial” is an equivalent term to the tribulation period. But it is also important to call out many will be saved and turn to Jesus throughout the 7-year tribulation. So even though all Christians will avoid "the hour of trial" those who come to Jesus following the rapture will need to endure the perilous times ahead.