In the year 31 AD, after Christ ascended to God, He was made the Lord of heaven and earth, and the Spirit of Christ, as the Angel Michael, cast Satan and his Angels down.
The beginning of Satan’s tribulation was described in Revelation 12:10-12,
the accuser of the brethren has been thrown down, he who accuses them before our God day and night – woe to the EARTH and the SEA, because the devil has come down to you, having great wrath, knowing that he has only a short time.
Already in the time of the Apostles, the Apostle John told us,
the spirit of the antichrist which you have heard is coming – is now already in the world.
In Daniel Chapter 8, Daniel told us that Satan was “given an army.” That is an army of demons.
In Chapter 11, Daniel said “arms stand up from him and they pollute the sanctuary of strength” (Daniel 11:31).
The Hebrew word used for strength is “maoz,” and is only used in the Old Testament to describe the refuge of God, as in “God is my strong fortress.” The army of Satan ended the worship of God in the Holy Spirit.
Jesus said, “when you see Jerusalem surrounded by armies, know that her desolation is near.” The desolation that He spoke of was the desolation of New Jerusalem, by the Antichrist.
The Apostle Paul said that the coming of the lawless one would be according to the working of Satan, with all power, signs and lying wonders” (2 Thessalonians 2:9). By end of the second Century, Montanism had spread throughout Asia. Montanism was the possession of evil spirits, the army of Satan. Its founders, Montanus and Maximillia, “died a different death, a mind-destroying spirit, driving each to a separate suicide.” The chief spokesman of the Montanists was Tertullian, who was the father of Latin Christianity.