One of the ways it is known that we are in the days of the reign of Antichrist, and that day of apostasy Paul describes here 2 Thess 2:3-4 3 Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition; 4 Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God. This is so because the religious world in general has departed from the Faith that was once delivered to the Saints, foundational upon the Person and Work of the Lord Jesus Christ and His Obedience minus any personal obedience and or conditions of our own, but His obedience alone being that which Justifies an Elect People before God ! This was notably preached by the Apostle Paul in Rom 5 where He Illustrates the basis of our Justification and Righteousness before God in a comparison between Adam and the Lord Jesus Christ in their Covenant Head Capacities, comparing the effects of Adam's headship disobedience and Christ's Headship obedience See Rom 5:19, and from this Paul highlights that Adam's disobedience is the meritorious cause of our sinnership, that disobedience being imputed to us without any personal or actual sin of our own, yet we were constituted sinners ! Now in like manner, The obedience of Christ, in offering Himself a sacrifice for our [The Church] sins, making satisfaction to God's Law and Justice, in obedience to His Father's command Heb 10:4-10; Jn 10:18, and this being the meritorious effectual cause of our being constituted Righteous, by imputation without any personal obedience of ours to go along with it ! This is the Gospel that Paul Preached, A Righteousness Imputed without works or conditions, or personal obedience, and any Gospel that deviates from this one is a False Gospel and Characterizes the Apostasy in these last days right up to the Second Coming ! Antichrist is now reigning supremely, because every religion without exception has some kind of condition man must meet !