The answer is: A sharp sword

Rev 1 vs 16

In Revelation 1:16, capturing the essence of divine power, we see a striking image: from Jesus’ mouth comes a sharply wielded sword. This detail is rich with symbolism and meaning, effortlessly linking Christ to the imagery of not just a warrior but a herald of truth. The sword is often used throughout the Bible as a symbol of the Word of God—meaning truth, justice, and the underlying power to discern good from evil.

You might find it fascinating that this motif of a sword echoes throughout Hebrew scriptures as seen in Hebrews 4:12, which says that the Word of God is comparably “living and active, sharper than any two-edged sword.” It's interesting how these writings came together to convey a unified message about the potency of the divine truth.

In historical contexts, swords were not merely weapons; they were seen as instruments of judgment and stylized divine intervention in battles, drawing upon God’s righteousness. It’s also worth noting that John, the author of Revelation, wrote during a time of oppression, his fantastical imagery offering hope and stirring rebellion against tyranny through powerful visions of a just and righteous ultimatum.

Revelation itself, a vivid tapestry of symbolism and visions, can seem daunting, but there’s always a key takeaway—a constant reminder that truth, even when delivered in necessarily harsh tones, is meant to refine us, guide us, and illuminate the corridors of spiritual victory.