What does the Bible say about humility and unity?

In Philippians 4:2, Paul urgently appeals to two sisters in the Lord to be of the same mind, highlighting that humility is essential for unity within the church. Throughout the letter, he emphasizes that pride can lead to division, while a humble spirit encourages reconciliation and harmony among believers. Paul's exhortation to esteem others better than oneself reinforces the notion that humility fosters unity, as it encourages believers to recognize their common standing as sinners saved by grace.