What does the Bible say about witnessing to others?

The Bible emphasizes the importance of witnessing to others, particularly in the context of Proverbs 29:9-11. Solomon instructs that natural human efforts to convince the spiritually blind are fruitless, as individuals are spiritually dead and incapable of understanding without divine intervention. Instead, a wise person should seek to share the gospel without contention, recognizing that a heart changed by God is essential for understanding. Believers are called to love and pray for those who oppose the gospel, relying on God's power rather than their arguments.