How does the slain Lamb prevail to open the seven-sealed scroll and receive the adoration of heaven and earth in Apocalypse 5?

In the ongoing vision of the heavenly court, Saint John observes a mysterious scroll held in the right hand of the sovereign Lord seated upon the throne. The document is inscribed on both the inside and the outside, and is securely fastened with seven distinct seals, whose contents are not specified here. A mighty angel steps forward, proclaiming with a resounding voice the momentous challenge: who is worthy to open the book and break its seals? no being in heaven, on earth, or beneath the earth possesses the authority or power to open the scroll or even to gaze upon its contents. Overcome with deep grief at the apparent impossibility of unlocking the divine mysteries, John weeps bitterly because no one in creation is found worthy to inspect the book. Seeing his distress, one of the twenty-four ancients comforts the apostle, urging him to weep no longer. The elder announces that the Lion of the tribe of Judah, the root of David, has prevailed, prevailing to open the scroll and loose its seven seals.

Looking toward the center of the celestial throne, amidst the four living creatures and the circle of twenty-four ancients, John beholds a a Lamb standing as though it had been slain. The Lamb has seven horns and seven eyes, which are the seven spirits of God sent forth across all the earth. Stepping forward with divine dignity, the Lamb approaches the sovereign throne and takes the seven-sealed scroll directly out of the right hand of the one seated on the throne. When he has opened the book, the four living creatures and the twenty-four ancients fall prostrate before the Lamb in reverent worship. Each of the elders holds a harp for liturgical song alongside golden vials filled with fragrant incense, which Sacred Scripture explicitly identifies as the prayers of the saints. Bishop Challoner highlights this passage as clear scriptural evidence that the saints in heaven actively present the intercessory prayers of the faithful on earth before the throne of Christ.

The celestial assembly bursts into a magnificent new canticle directed to the Lamb, singing that He alone is worthy to take the book and loosen its seals because He was slain in sacrifice and redeemed the singers unto God through His precious blood, gathering a people out of every tribe, language, nation, and race. By His redeeming passion, Christ has transformed these redeemed souls into a consecrated kingdom and priests unto God, destined to reign upon the earth. John's vision then expands to encompass an immense angelic multitude encircling the throne, the living creatures, and the elders—a throng numbering thousands of thousands . With a thunderous voice, this heavenly choir acclaims that the slain Lamb is worthy to receive power, divinity, wisdom, strength, honor, glory, and blessing. Finally, the chorus of adoration becomes universal: every creature in heaven, upon the earth, under the earth, and in the depths of the sea unites in cosmic praise, declaring that blessing, honor, glory, and dominion belong forever to Him who sits upon the throne and to the Lamb. The four living creatures seal this universal liturgy with their solemn "Amen," while the twenty-four elders fall on their faces, adoring the eternal God who lives for ever and ever.