The Book of Revelation is the unveiling of Jesus Christ, demonstrating His ultimate victory over sin, death, and the kingdoms of this world. It serves as an encouragement to the church to persevere in faith, knowing that the Lamb of God who was slain is now the reigning King of kings.
At its heart, the book is not merely a collection of cryptic symbols, but the 'Revelation of Jesus Christ' (Revelation 1:1). It invites us to behold the Living One who was dead but is now alive forevermore, holding the keys of death and Hades (Revelation 1:17-18). For the believer, this is the glorious comfort of the gospel: though we are more sinful than we dared believe, we are more secure in the hands of the One who has already conquered the grave.
John writes as a 'brother and partaker... in tribulation and kingdom and patience' (Revelation 1:9). The book addresses the reality of the church's struggle against the world—often represented as a beastly power—yet it ensures that the Lamb shall triumph because He is Lord of lords and King of kings (Revelation 17:14). This teaches us that our obedience is not the cause of our acceptance, but the fruit of being united to the Victorious Lamb. As the Westminster Larger Catechism Q.5 reminds us, the Scriptures teach us both what to believe about God and what duty He requires of us; here, our duty is to stand firm in the grace already won for us.