Scriptural Origin: Proverbs 27:17 — “As iron sharpens iron, so one man sharpens another.”
Definition: A biblical metaphor describing mutual growth through constructive engagement. Just as iron blades are honed by friction, believers sharpen one another through dialogue, correction, and encouragement.
Theological Use: Common in pastoral ministry, discipleship, and theological debate. It affirms that truth-seeking is best done in community, where differing views and shared convictions refine understanding.
Usage: “Our elders meet not just to plan, but to sharpen one another in doctrine and devotion. Iron sharpens iron.”
Pastoral Note: This phrase invites both polemic and irenic engagement. It assumes friction, but aims for refinement. True sharpening requires humility, trust, and a shared commitment to truth.