Up until now, “the good news of the Kingdom” has been the primary focus of the preaching work. For over 100 years, Witnesses have been proclaiming that Jesus Christ began ruling in heaven from October 1914 and after Armageddon survivors (and virtually everyone who will be resurrected with a physical body) have the prospect of living forever on a paradise earth. More recently, the focus has been on the impending tribulation, persecution and the destruction of false religion.
During October 2019 various Watchtower articles explored the book of Revelation and how to remain faithful during the coming Great Tribulation. Study article 41, paragraph 3, focused on the destruction of Babylon the Great, the world empire of false religion, including Christendom. * The footnote explained that Christendom is made up of religions that claim to be Christian but that do not teach people to worship Jehovah according to his standards.
The following extracts are about future changes to the message that Jehovah’s Witnesses will proclaim during the Great Tribulation and how that will result in persecution:
8 During the great tribulation, the message that we proclaim will likely change. Currently, we are preaching the good news of the Kingdom and we are endeavoring to make disciples. But at that time, we may well deliver a message as hard-hitting as hailstones. (Rev. 16:21) We may proclaim the impending doom of Satan’s world. In time, we will find out exactly what our message will be and how we will deliver it. Will we use the same methods we have used for over a hundred years to accomplish our ministry? Or will we use some other methods? We will have to wait and see. In any case, it seems that we will have the privilege of boldly proclaiming Jehovah’s judgment message!
9 Quite likely, our message will provoke the nations into trying to silence us once and for all. Just as we rely on Jehovah for support in our ministry now, we will need his support then. We can be sure that our God will fill us with power to accomplish his will.
11 At some point, the people whose religions were destroyed may resent the fact that Jehovah’s Witnesses keep practicing their religion. We can only imagine the uproar that this might create, including on social media. The nations and their ruler, Satan, will hate us for having the only surviving religion. They will not have attained their goal to eliminate all religion from the face of the earth. So we will become the center of their attention. At this point, the nations will take on the role of Gog of Magog. (* refers to a coalition of nations that will fight against pure worship during the great tribulation) They will band together to make a vicious, all-out attack on Jehovah’s people.
The most recent Watchtower study articles focus on Revelation, and how to endure persecution during the Great Tribulation, which precedes Armageddon. The following is a brief extract from the May 2022 Watchtower study article ‘Revelation – what it means for you today’ sub-heading BE WILLING TO ENDURE PERSECUTION:
19 The good news of the Kingdom is not the only message that God’s people are to declare. They also need to support the work of the angels who are described in Revelation chapters 8 through 10. These angels announce a series of woes for those who reject God’s Kingdom. Thus, Jehovah’s Witnesses have been declaring a judgment message, likened to “hail and fire,” revealing God’s judgments on the various elements of Satan’s wicked world. (Rev. 8:7, 13) People need to know that the end is near so that they can make drastic changes in their lives and survive Jehovah’s day of anger. (Zeph. 2:2, 3) But this message is not popular. Declaring it calls for courage on our part. During the great tribulation, the final judgment message will become more hard-hitting.
Here is a summary of events Jehovah’s Witnesses anticipate prior to the Great Tribulation:
The precursor of the Great Tribulation will be a proclamation of peace and security. This is to be followed by the final sealing of the remnant of anointed Christians (Jehovah’s Witnesses). The Great Tribulation begins with an attack on religion by the Wild Beast of Revelation (which they say is the United Nations). Events leading up to Armageddon include celestial phenomena, pronouncement of judgment on the enemies of God’s Kingdom by the Son of Man (Jesus), the all-out attack of Gog of Magog (Satan) on Jehovah’s people and then the gathering of the anointed ones. These things happen before Armageddon, at which point the Great Tribulation ends. The grand finale of the Great Tribulation is the execution of judgment at Armageddon. Source: ‘God’s Kingdom Rules!’ 2014
Jehovah’s Witnesses believe the Great Tribulation is almost upon us, and this is based on worsening global events, such as the Covid-19 pandemic, the Russian invasion of Ukraine and the threat that poses to other countries, shortage of food supplies and huge rises in the cost of oil, gas and electricity, as well as flooding, heat-waves and wild-fires throughout the world. These signs of the end of the age have been with us since the resurrection of Christ Jesus, but they are getting worse, as Jesus predicted they would (Matthew 24:8, 21).
6 Near the end of his earthly ministry, Jesus foretold certain world events that would help his followers know that he had begun ruling in heaven. Among other things, he mentioned wars, famines, and earthquakes. He also foretold that there would be pestilences, or diseases, “in one place after another”—of which the recent COVID-19 pandemic is an example. Source: https://wol.jw.org/en/wol/d/r1/lp-e/2022480
In answer to your question, it seems that Jehovah’s Witnesses have now been primed to receive a hard-hitting message of judgment against all who reject their message. This will result in the nations (under their ruler Satan) persecuting them in an all-out attack on Jehovah’s people.