“A two-edged sword is one which has been sharpened on both sides to make it twice as effective. God’s word and the still small voice of the Spirit are even sharper than this, for they are capable of piercing the most pernicious armament and of penetrating to the innermost depths of one’s soul (D&C 85:6). When the Lord, or His servants, speak with the sharpness of the sword of their mouths, ‘the guilty taketh the truth to be hard, for it cutteth them to the very center’ (1 Nephi 16:2)” (Brewster, Isaiah Plain and Simple, 190–91).