Heavenly Father, what an amazing God You are. While I was yet a sinner, Christ died for me and not only saved me and forgave me of my sin, but securely sealed me as Your promised possession. He also sent the Holy Spirit into my heart as a pledge and a guarantee that Your promises to me, and to all Your blood-bought children, can never be broken. Thank You, in Jesus' name, AMEN.
Source: Verse of the day for 2 Corinthians 1:22