God's Word is full of these amazing promises. They aren't all decorative like this, but they are in there. I encourage you to read His Word for yourself today. Start in the book of John, getting to know Jesus. www.deeperstillministries.com
“Prayer for peace in my heart” is partially based on Ephesians 2:13-18 which speaks about how Jesus is our only true peace. He makes peace between you and God by ending all conflict and hostility. But beyond just an end to disagreement, true peace is a unified heart. Pray for peace in your heart and God will give it to you.