What does the Bible say about peace that passes understanding?

The peace of God, as described in Philippians 4:7, is a profound and miraculous state of calm and reassurance that transcends human understanding. It guards our hearts and minds through Christ Jesus, allowing believers to experience tranquility even amidst life's turmoil. This peace is inseparably tied to our relationship with Christ, who said in John 14:27, 'Peace I leave with you; my peace I give to you.' The peace that believers experience is not rooted in external circumstances but in the assurance of God’s presence and favor.