1) Satan actively works to obstruct and distract people from the Christian faith through various schemes. He hindered Paul from visiting the Thessalonians again despite Paul's strong desire. 2) Paul recognized Satan as the real enemy behind all opposition to spreading the gospel. Satan's purpose is to hinder God's work and stop the advancement of the Church. 3) Paul took hope and joy in the Thessalonians and the return of Christ. He viewed the Thessalonians as his crown and source of rejoicing at Christ's coming.