Great men ought always to be jealous of flatterers, and remember that nature has given them two ears, that they may hear both sides.
(Matthew Henry Bible Commentary (complete) - 2 Samuel 16 Bible Commentary @ https://www.christianity.com/bible/commentary/mh/2-samuel/16)
Make your ear attentive to wisdom and incline your heart to understanding to understand the fear of the Lord and find the knowledge of God. (Proverbs 2:2, 2:5)