The sermon, drawn from 2 Thessalonians 2:1–17, centers on calming the believer's mind amid false teachings about Christ's return by grounding faith in divine sovereignty and scriptural truth. It identifies the danger of deception through false prophecies, forged letters, or spiritual claims, warning that such disturbances stem from a deeper rebellion and the eventual revelation of the 'man of lawlessness'—a figure symbolizing systemic apostasy rather than merely a single individual. The preacher emphasizes that this lawlessness is already at work, restrained by God's ongoing work through the gospel, and will be ultimately defeated by Christ's return, when He will destroy the lawless one by the breath of His mouth, demonstrating His supreme authority. Despite the mystery of timing and details, the core message affirms unshakable confidence: God's elect will be gathered to Christ, preserved by His grace, and secured in eternal union with Him, provided believers remain rooted in Scripture, love the truth, and endure in faith.