The Hebrew qetsaphah derives from qatsaph (H7107), meaning to be angry or burst out in rage. As a noun it describes God's wrath poured out, or β in one usage β the broken-off fragments that result when something is shattered. The word captures the explosive nature of wrath: like something violently broken, shattering into pieces.
Divine wrath in the Old Testament is not mere irritation but qetsaphah β the explosive response of infinite holiness to human covenant-breaking. Zechariah 1:15 shows God angry with the nations who exceeded His chastisement of Israel, while earlier generations suffered under God's fierce anger in the wilderness. Understanding qetsaphah is essential for grasping the gravity of sin and the wonder of grace β that God's wrath against our sin was absorbed by the Suffering Servant (Isaiah 53) rather than poured out on us.