1. Don't be deceived (1-12)

Jesus' second coming has often been twisted to deceive people. Some Thessalonians thought Jesus had already returned. This caused confusion and anxiety. But Jesus has not yet returned. Prior to Jesus' return, the world will descend into full rebellion against God. Then the man of lawlessness will be revealed. He is currently held back but his power is already at work in the world. When he is revealed, he will deceive many and lead them to destruction. God allows this to come upon those who do not love the truth. But when our Lord Jesus returns, he will destroy the lawless one.

2. Stand firm, hold fast (13-17)

Those who are sanctified through the Holy Spirit and believe the truth will not share the same fate as those who follow the antichrist. Instead they will share in the glory of the Lord Jesus when he returns. We overcome the work of the lawless one when we stand firm and hold fast to the word of God.