The Hebrew word otsar (אוֹצָר) refers to a treasury, storehouse, or reservoir — a place where precious things are gathered and kept. It is used for royal treasuries, temple storehouses, and metaphorically for God's cosmic storehouses of snow, hail, wind, and rain.
Otsar reveals God as the owner of all things. He holds cosmic storehouses (Job 38:22; Psalm 135:7), and the temple treasury represented His provision for worship. Proverbs speaks of wisdom's treasures (8:21), while in the New Testament Christ becomes the one in whom all the treasures of wisdom and knowledge are hidden (Colossians 2:3). The concept of treasure challenges believers to lay up treasures in heaven rather than earth.