Mal 2:17 You have wearied the LORD with your words. But you say, “How have we wearied him?” By saying, “Everyone who does evil is good in the sight of the LORD, and he delights in them.” Or by asking, “Where is the God of justice?”
In Malachi 2, the prophet implores the people to turn to God. The people have become faithless, being led by the priesthood. They have become partial in their judgments, exchanging the truth for a lie. God counters all of Israel, charging them to do good. God has been wearied by their continuous evil, and furthermore their misrepresentation of that evil as good. God is misrepresented to others, and this hurts God viscerally. This is a text of extreme mutability. God can be hurt by words.