² Don’t let yourselves be easily upset or worried if you hear that the day of the Lord has already come. Someone might say that this idea came from us—in something the Spirit told us, or in something we said, or in a letter we wrote. ³ Don’t be fooled by anything they might say. That day of the Lord will not come until the turning away from God happens. And that day will not come until the Man of Evil appears, the one who belongs to hell.^{[a] 4} He will stand against and put himself above everything that people worship or think is worthy of worship. He will even go into God’s Temple^[b] and sit there, claiming that he is God.