AGREE = 100% TRUTH = We must FIRST be made spiritually Alive in Christ BEFORE we physically die.
Were the Saints who Jesus was speaking to in Rev 2:10 born-again/alive in Him?
The letter addresses the churches, and Christ says he who overcomes shall not be harmed by the second death. If they are spiritually alive in Him, then they will hear what the Spirit says. Those who shall not be harmed by the second death have part in the first resurrection in time. If they have part in the first resurrection, they have been born again. The binding of the devil does not prevent him from bringing great tribulation to the Churches on earth. Satan was bound by Christ's crucifixion and resurrection so that he is no longer able to deceive believers among the nations by holding them in bondage to fear of death. When people throughout the nations hear the Gospel and by grace through faith believe in Christ the power Satan once possessed to hold them in bondage of fear to death is broken forever. Believers are no longer deceived by Satan's lies. It is in this manner that Satan is bound. He was never bound to prevent him from bringing the Churches on earth suffering through great tribulation. Because great tribulation is always connected to proclaiming the Gospel.
Matthew 24:14 (KJV) And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.
Matthew 24:21 (KJV) For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.