What ? Revelation 20:4-6 has the resurrection of the martyred great tribulation saints, who did not worship the beast, nor his image, nor took his mark. Those three things are found in other parts of Revelation.
The beast reigns 42 months in Revelation 13:5.
Revelation 20 is not a parallel as you are claiming. Revelation 20 is a continuation of Revelation 19:11-20, Jesus's Second Coming.
Revelation 17:8 states,
“The beast that thou sawest was, and is not; and shall ascend out of the bottomless pit, and go into perdition: and they that dwell on the earth shall wonder, whose names were not written in the book of life from the foundation of the world, when they behold the beast that was, and is not, and yet is.”
This passage strongly shows that the beast existed prior to the day of John, stating, “the beast that was.” Notwithstanding, the terminology that follows appears slightly contradictory – “is not, and yet is.” One could be tempted to reason: it either is or else it isn’t, notwithstanding, this reading plainly says that it both “is” and “is not.” The import of the reading appears to demonstrate that the beast did exist in John’s day, and in fact, before John’s day, but that it had not fully developed into what it would eventually become. There is a saying in Northern Ireland that appears to explain this reading – ‘He is a big fellow, but a wee jacket fits him’ i.e. ‘he is not as big as he thinks he is’. This appears to be the meaning.
Revelation 17:11-13 further enlarges,
“the beast that was, and is not, even he is the eighth, and is of the seven, and goeth into perdition. And the ten horns which thou sawest are ten kings, which have received no kingdom as yet; but receive power as kings one hour with the beast. These have one mind, and shall give their power and strength unto the beast.”
A plain reading of these passages proves that, whatever the beast truly represents, he/it was expressly in existence before the time that John received this symbolic revelation. The beast
cannot therefore merely be a last few years end-time phenomenon, as some would have us believe. After all, he existed before John wrote Revelation. We learn through the apostle’s first century testimony that the beast expressly
“was” (past tense). In fact, the passage mentions this fact three times (twice in verse 8, and once in verse 11). Therefore, he existed before John. He also existed at the time of John – who said of his day, the beast
“is” (present tense). John then explained that the beast would continue after his day, saying it
“shall” be (future tense). In fact, Scripture tells us that the beast, and the false prophet, will only finally be destroyed at the all-consummating second coming of the Lord, where they will be “cast alive into the lake of fire burning with brimstone” (Revelation 19:20). Why would this world system be destroyed at Christ’s coming and then re-emerge in a future millennium as the sand of the sea?
Having said all this, the terminology that follows is strange and appears contradictory, saying, “is not, and yet is.” One could naturally be tempted to reason: the beast either
is or else it
isn’t, although, this reading plainly says that the beast both “is” and “is not” at the same time. Whilst the import of the reading indicates that the beast existed in John’s day, it would seem to suggest that it did so in a restrained or restricted manner. How else can we marry the two facts that the beast “is” and “is not” at the same time. The system represented by the beast must have been around in John’s day, albeit in a curtailed manner – a bit like a prisoner that has full movement within a prison, although, he is restricted to particular areas at given times and must continually abide by the careful rules and guidelines that govern his movements within the penitentiary. He has freedom – to a degree, but in another hand he is not free to do as he wishes. The bottom line is: the prisoner would be viewed by every sane observer as bound.
The beast “was” because Satan and his kingdom operated long before Christ ever invaded his territory at the first Advent. He is deemed “is not” because, through Christ's successful completion of His Father’s assignment on earth He roundly defeated Satan in his own backyard and spiritually spoiled his goods and influence. Christ instigated the great triumphant global advance upon the kingdom of darkness. This has inflicted great injury and damage upon the antichrist spirit for near 2,000 years. Christ went forth conquering and to conquer through the successful spread of the Gospel to the nations. The fact is the gates of hell can never prevail against the Church of Jesus Christ.
The beast “is not” because Satan and the beast no longer exercises complete unchallenged control over the nations as he once did before the cross. Revelation 13:1-4 shows that at some stage in history one of the beast’s heads were “wounded” thus incapacitating this evil ogre. This can only refer to the cross and Christ’s great victory over the kingdom of darkness. This transaction placed chains upon the rebellious principalities and powers which remain until Satan’s little season.
The beast “is” (at the time of John's writing) because even though Christ spiritual bound him at the cross, he was allowed to continue to operate for a prescribed period, albeit under very definite limits which God has divinely set. These cannot be penetrated.
