'Anger of the Lord' in the Bible

But the sons of Israel acted unfaithfully in regard to the things under the ban, for Achan, the son of Carmi, the son of Zabdi, the son of Zerah, from the tribe of Judah, took some of the things under the ban, therefore the anger of the Lord burned against the sons of Israel.

When you transgress the covenant of the Lord your God, which He commanded you, and go and serve other gods and bow down to them, then the anger of the Lord will burn against you, and you will perish quickly from off the good land which He has given you.”