Genuine wisdom is knowing who to embrace and who to avoid in life.
It is clear from Romans 16 that the apostle Paul was a wise man.
After sending his warm greetings to twenty-six Christians in Rome (Romans 16:3-15), his counsel in verses 17-18 identifies everyone a wise person must avoid. He writes: “Now I urge you, brethren, note those who cause divisions and offenses, contrary to the doctrine which you learned, and avoid them. For those who are such do not serve our Lord Jesus Christ, but their own belly, and by smooth words and flattering speech deceive the hearts of the simple” (Romans 16:17-18).
Not only does a righteous man delight in the law of the Lord, meditating on it day and night (Psalm 1:2), he also does not walk in the counsel of the ungodly, or stand in the path of sinners, or sit in the seat of the scornful (Psalm 1:1).
A wise Christian knows who to greet. He also knows who to note and avoid.