Quiver
A quiver (Hebrew ashpah or teli) was a portable case — usually of leather, wood, or reed — used to carry arrows. In biblical usage the quiver appears both literally and metaphorically. As a military item, it was carried by archers in both Israelite and enemy armies (Isaiah 22:6; Jeremiah 5:16). The quiver of the LORD's servant is used as a metaphor in Isaiah 49:2, where the Servant of the LORD says God "hid me in his quiver" — suggesting a sharp instrument kept in reserve for the appointed hour.
The most theologically rich use is in Psalm 127:5: "Happy is the man that hath his quiver full of them" — where "them" refers to sons, compared in verse 4 to arrows in the hand of a mighty man. Children are described as a heritage from the LORD and a reward, and the man with many sons has strength at the city gate. Job 39:23 pictures the war-horse's quiver rattling against it as it rushes into battle, adding to the vivid description of the animal's fearlessness that forms part of God's answer from the whirlwind.