"He who walks with wise men will be wise, but the companion of fools will be destroyed." NKJV
Everyone has been told that who they choose as friends is important. Patrick McManus said “Back when I was a kid, my mother constantly warned me about falling in with bad company. Then one day it occurred to her that I was probably the bad company, and she had to warn other kids about falling in with me.”
This truth is evident in our world. The people that we spend time with and invest energy in are the ones we become like. If those people are wise we will begin to pick up bits and pieces of their wisdom. The people with knowledge and wisdom are the ones that we can gain understanding from. Our habits reflect theirs and vice versa. If you are walking with wise people and studying God’s word, you are on the road becoming wise, and at some point those you walk with will also become wiser from walking with you.
The contrast here is intense, though. The companion of fools will be destroyed. Other translations say he will suffer harm. When you follow wise people, you will be made wise. When you follow fools, you will be a fool. Not only that, but by nature a fool will suffer more than a wise person with understanding. Take care to seek out good company and wise people that fear God.