Based on the following statements of the WTBTS, the first resurrection began in 1918, is ongoing, and ceases when the living anointed are taken to heaven - just before Armageddon.
(w88 10/15 p. 12 par. 13) "....according to all the evidence, those of the anointed who had already died faithful began to be resurrected to their promised place in the heavenly sanctuary starting in 1918."
(w07 1/1 p. 30 par. 18) "As Christ’s presence progresses, anointed Christians who faithfully finish their earthly course are changed "in the twinkling of an eye" into powerful spirit creatures."
(w14 2/15 p. 10 par. 12) "Sometime after the destruction of Babylon the Great, Jesus will gather to himself all the remaining members of the bride class. Before the outbreak of the war of Armageddon, therefore, all members of the "bride" will be in heaven."
(The first resurrection - according to the Brooklyn hierarchy - will be completed before Armageddon commences)
Revelation 20:1-3 tells of certain events which take place before the first resurrection occurs, followed by the resurrection itself in verse 4:
1) "And I saw an angel coming down out of heaven with the key of the abyss and a great chain in his hand."
2) "He seized the dragon, the original serpent, who is the Devil and Satan, and bound him for 1,000 years."
3) "And he hurled him into the abyss and shut it and sealed it over him, so that he would not mislead the nations anymore until the 1,000 years were ended. After this he must be released for a little while."
4) "And they came to life and ruled as kings with the Christ for 1,000 years."
According to the organization, the first resurrection began in 1918 and concludes prior to Armageddon - followed by the "second" resurrection which occurs sometime after Armageddon.
According to Rev. 20:1-12, the first resurrection (the righteous) only begins after Satan is thrown into the abyss, with the second resurrection (the unrighteous) occurring at the end of the 1000 years.
The only possible way for the WTBTS to dismiss the Bible account is to claim that the apostle John got the Revelation details chronologically wrong, just as they did with Luke's account of the Lord's evening meal. (it-2 p. 130 Judas - "Luke’s presentation of this incident evidently is not in strict chronological order")
On that basis, the org's faithful worshippers will swallow it.