Isaiah 49:2

He hath made my mouth like a sharp sword. — The words indicate at once the spiritual nature of the “Servant’s” victories. It is his speech that wounds and heals, his words that go like winged arrows to their mark. The description finds an echo in Hebrews 4:12; Revelation 1:16; Revelation 19:15; Ephesians 6:17. The “shaft” is “polished,” as piercing without impediment. It is “hid in the quiver,” reserved, in the drama of the world’s history, and in each crisis of the Servant’s life, till the “hour was come,” the appointed “fulness of time” (John 2:4; John 7:6; Galatians 4:4).