Yahweh is a jealous and avenging God;
Yahweh avenges and is full of wrath.
Yahweh takes vengeance on his adversaries,
and he stores up wrath for his enemies. Bible see other translations

“he stores up wrath.” The Hebrew translated “stores up” has a few different meanings, and it can also be understood as Yahweh “reserves” his wrath for his enemies (JPS; KJV), He “sustains” or “maintains” his wrath against His enemies (NET; NIV); and/or He “stores up” His wrath for His enemies (CJB; NJB; REV).

Commentary for: Nahum 1:2