With the two pre / post rapture threads going, what is the true purpose of the GT? I believe it's Romans 11. Why would a believer, sealed with the Holy Spirit, need to, or have to go through the GT? If we are told we can resist the devil and he will flee from us, why wouldn't it be a piece of cake for us to not take the mark? How could a true believer, sealed with the Holy Spirit, be able to even receive the mark?