Jesus will fulfill the New Testament (Rev 21:6) just as he fulfilled the Old Testament (Jn 19:30).
The prophecies in the four gospels are the same as the prophecies of Revelation. Prophecies are given so that we can believe when they are fulfilled (Jn 14:29). How is it, then, that they are fulfilled? Both the Old and New Testament refer to the work of a messenger that must “prepare the way” (Rev 1, 2, 3). During this work of preparing the way, pastors that belong to Satan invade the tabernacle of heaven. These pastors entice people to eat food sacrificed to idols and to commit sexual immorality with Satan. This is when Jesus chooses one pastor to send his letters to the seven messengers who play the role of the seven golden lampstands that prepare the way. The letters ask the messengers to repent, and say that the blessings recorded in Rev 2 and 3 will be given to the one who overcomes the invading Nicolaitans. The fulfillment of Rev 2 and 3 is equivalent to the fulfillment of all the chapters of Revelation. Although the seven messengers receive the letters of Rev 2-3, they refuse to repent. Since these chosen people are symbolized by the sun, moon, and stars, and by heaven and earth, Rev 6 reveals that they are judged for their betrayal, just as Adam and the chosen people of the first coming were. Just as Physical Israel came to an end, this event represents the judgment and end of Spiritual Israel.
After this, the 12 tribes of New Spiritual Israel are newly created through the work of harvesting and the work of sealing (Rev 7). The 12 tribes are the 144,000 firstfruits in Rev 14. Are people saved just because they claim to be? Have you received the holy spirit just because you think you have? Can you be truly orthodox just by saying so? No one can gain salvation or receive the holy spirit at the time of Revelation’s fulfillment unless they belong to these 12 tribes. That is the only way to be truly orthodox. If you are part of the 12 tribes you must know the meaning of the seven stars (Rev 1:20), the name of the beast, and the number 666 (Rev 13). You must understand the true identity of the wine of adulteries (Rev 17), the place of the marriage with the devil (Rev 18), and the place of the wedding banquet of the lamb (Rev 19). Only the one who has seen and heard all the events through Jesus and his angels at the location where the prophecies are physically fulfilled is capable of testifying these things. These are the revealed teachings of God, which make known both the prophecies and their fulfillment. No one should add anything to or take away anything from the words of the book of Revelation (Rev 22:18-19). If that is the case, people who are ignorant of the prophecies and their physical fulfillment should receive the testimony of the one who does know them. This is the only way to become a wise believer who truly understands what he or she believes.
The prophecies were given so that people could believe when they are fulfilled (Jn 14:29). Those who do not believe in the physical fulfillment reveal themselves to be false believers just like the Physical Israelites did (Eph 2:12).