Paul's message to Timothy centers on the fundamental truths of the Christian faith: Jesus Christ's resurrection and His descent from David. These two aspects are crucial because they affirm both Jesus' divine nature and His fulfillment of the messianic prophecies found in the Old Testament. By stating "Remember Jesus Christ," Paul is urging Timothy and all believers to keep these truths at the forefront of their faith. The resurrection is the cornerstone of Christian belief, symbolizing victory over sin and death, and offering the promise of eternal life to all who believe. Jesus being descended from David ties Him to the lineage of Israel's greatest king, fulfilling the prophecy that the Messiah would come from David's line. This connection reinforces Jesus' rightful claim as the promised Savior.
Paul's declaration, "This is my gospel," underscores the personal conviction and commitment he has to this message. It is a call to remain steadfast in the faith, especially in the face of persecution or doubt. By focusing on these core truths, believers are encouraged to find strength and hope, knowing that their faith is rooted in the powerful and transformative reality of Jesus Christ's life, death, and resurrection.