How do we know that Jesus' blood brings peace?

In Hebrews 13:20-21, the text emphasizes that God is the source of peace and that it is through the blood of Jesus Christ that this peace is secured. Colossians 1:20 further affirms that peace is made through the blood of His cross. This peace is profound and transformative, as it reconciles believers with God, who, apart from Christ, experience His wrath. The shedding of Jesus' blood signifies an everlasting covenant that ensures our standing before God, highlighting the importance of understanding Christ’s atoning work as central to our faith.