How do we know Christ gives us peace?

In John 14:27, Jesus explicitly states that He gives His peace, which is not as the world gives, but a deeper, lasting peace that eases troubled hearts. The peace He provides is linked with His work of reconciliation on the cross, where He bore our enmity and made us right with God (2 Corinthians 5:18-21). Understanding this promise reassures believers that their internal strife can be calmed and their hearts fortified by the peace that only Christ can provide, especially amid life’s trials.