How does the Gospel function as the 'rod of His strength'?

Psalm 110:2 refers to the Gospel as the 'rod of thy strength' sent out of Zion, indicating that it serves as the tool for Christ's divine authority and governance. This metaphor implies that the proclamation of the Gospel is powerful, equipped to transform hearts and draw those who are enemies into willing followers of Christ. The Gospel not only signifies the message of grace but also acts as the means through which God's power operates to reconcile sinners to Himself, demonstrating the efficacy of Christ's work through His church.