tingling ears

God's anger is a terrible thing. Look at how mad he finally God at Manasseh, the king of Judah, in 2 Kings 21:10-15: 

"The Lord said through his servants the prophets: "Manasseh king of Judah has committed these detestable sins. He has done more evil than the Amorites who preceded him and has led Judah into sin with his idols. Therefore this is what the Lord, the God of Israel, says: I am going to bring such disaster on Jerusalem and Judah that the ears of everyone who hears of it will tingle. I will stretch out over Jerusalem the measuring line used against Samaria and the plumb line used against the house of Ahab. I will wipe out Jerusalem as one wipes a dish, wiping it and turning it upside down. I will forsake the remnant of my inheritance and give them into the hands of enemies. They will be looted and plundered by all their enemies; they have done evil in my eyes and have aroused my anger from the day their ancestors came out of Egypt until this day.'"

Will I ever see the Lord's anger like that? I hope not. I know I disappoint him a lot, and that he hates my sin; I hope his grace will keep me from ever being wiped out like a dirty bowl.

As noted in this passage, Manasseh did two things that God called detestable. First, rather than turning toward God, he continued and increased the trajectory of evil of the previous kings. Second, he led the whole nation into idolatry. 

The opposite of those sins is to become more holy and to lead others to Jesus - the basic calling of any Christian. In the end, Manasseh was destroyed because he forgot his purpose.