How do we know God's promise of peace is true?

God's promise of peace is affirmed throughout Scripture, most notably in John 14:27 where Jesus says, 'Peace I leave with you; my peace I give unto you.' This declaration illustrates the assurance Christians have in Christ, who provides a peace that the world cannot offer. Moreover, Isaiah 26:3 reiterates that perfect peace comes from the steadfast mind focused on the Lord. The consistency of these promises in Scripture further solidifies the truthfulness of God's declarations regarding peace and stability in Him.