'Fierce Wrath' in the Bible

Now hear me therefore, and send back the captives, that you have taken captive from your brothers; for the fierce wrath of Yahweh is on you."

and said to them, "You shall not bring in the captives here: for you purpose that which will bring on us a trespass against Yahweh, to add to our sins and to our trespass; for our trespass is great, and there is fierce wrath against Israel."