Revelation 21-22. The Greek transliterations for denomination are heresy, gnosticism and apostasy.

A denomination, sect, or religion of men is a heresy, gnostic belief, or apostasy 2 Thess. 2:3. We had to be under a strong delusion 2 Thess. 2:11, with the Bible hidden away, to be in apostasy in order to have two ages of Christianity, just like the two temples in Jerusalem were separated by apostasy.
I am a watchman over the second age of Christianity and the spiritual temple, just like Ezekiel was a watchman over the second physical temple in Jerusalem built in 531 BC.
During denominational apostasy away from Christianity, Satan has been ruling over the kingdoms of men with the bibles, preaching, and religions of men 2 Thess. 2:1-11. Now that Satan's identified as the man of sin and the second horseman of the apocalypse Rev. 6:4; 2 Thess. 2:3, we begin World War 3, the second great fight of faith a 43-year war between the "wisdom from above" and the "wisdom from below" James 3:13-18; 1 Cor. 2:6-16; Dan. 12:4; Joel 2; Acts 2:17-21; 2 Pet. 3.
Three years of Pre-Christianity and 40 years of Christian spiritual warfare or the great fight of faith begins now from about 2023 AD -2065 AD Isa. 55:8ff; 64:4ff; 2 Cor. 2:6-16; Micah 7:15; Dan. 2:44; 12:4; Acts 2:17-21. We are in the last days or end times of Satan's rule on this earth before the great wedding feast that begins in about 2065, where the meek inherit the new heaven and new earth as the old will be burned up by space weather on the great and terrible day of the Lord 2 Pet. 3; Matt. 5:5. Then in about 2785 AD, all wicked bodies and souls will be resurrected to be burned up, leaving their spirits to suffer in eternal torment. Then comes the great wedding.