Oh, the joys of those who do not follow the advice of the wicked, or stand around with sinners, or join in with mockers. (Psalm 1:1 NLT)
First you “listen,” then you “stand around,” and before you know it...you “join in” the evil. There is always a progression to sin and it is never in a positive direction. You don’t want to “isolate” yourself from unbelievers or you’ll lose the opportunity to influence them for Christ. But, you must “insulate” yourself from their sinful ways by doing what the next verse says, “...delighting in the Law of the Lord and meditating on it day and night” (Psalm 1:2). As the old saying goes, “God’s Word will keep you from sin or sin will keep you from God’s Word.”
