Modern translations render the word brutish in this verse, as stupid. Wow! That's pretty tough! But it's one of the sayings of the wisest man in history other than Jesus Himself!
Brutishness or hostility are often trademarks of the unteachable. Those who openly defy the man of God or otherwise seek to undermine the Word, are simply demonstrating brutishness. We have been treated to several displays of such in our own little body of believers.
The lesson in this, is not to be 'that guy'. If you are that guy, then STOP IT! It is certainly within our power to make that decision.
Let's all make a decision for the new year. (I really dislike the term resolution) Let's strive to be more open to the teaching that God so much wants to give us. His Word brings life!
Now, let the new year begin!