When this man is present, he will completely deceive those who will perish.

2 Thessalonians 2:9-12

9 But before Jesus destroys him, Satan will make him very powerful. As a result, he will do all kinds of supernatural miracles and amazing things [DOU] that will seem as though God has enabled him to do them. 10 And by doing wicked things, he will completely deceive those who will certainly ◄perish/go to hell►. He will deceive them because they will have refused to love the true message. So they will not be saved {God will not save them}. 11 So, God, by his power, will enable this man to easily deceive people, so that they will believe what this man falsely claims/says that he is. 12 The result will be that everyone will be rightly condemned {that God will justly condemn everyone} to be punished who did not believe the true message, but who instead gladly chose to be doing what is wicked.