What does the Bible say about peace ruling in our hearts?

In Colossians 3:15, the Apostle Paul instructs us to let the peace of God rule in our hearts. This ruling peace is not merely an emotional state but a governing authority over our lives, reminding us of our calling in one body—the Church. Without Christ, we have no peace with God, but through Him, believers are reconciled and find true peace. This essential peace must dominate our interactions within the body of Christ, as it fosters unity and aids in overcoming conflicts and disputes. The peace of God is not natural to us; it is a divine gift from the Holy Spirit, essential for harmonious relationships among believers.