The people you hang out with have a big impact on your character. Values, attitudes, beliefs, habits – they are all very contagious! You may not even notice subtle changes in your own soul until you have changed more than you wish. “Simple” things like profanity, attitudes about sexuality, what is appropriate entertainment, and how you treat other people are easily caught.
You can’t spend time in a barnyard and not get dirty.
But didn’t Jesus call His followers to be salt and light? How can you influence others for His Kingdom if you’re not around them? Staying safely inside the walls of the church is not effective. People don’t care about your doctrine if they don’t know and trust you.
You must get out of the saltshaker if your saltiness is to flavor anything. (Matt. 5:13)