How do we know faith produces peace according to the Bible?

Isaiah 26:3-4 affirms that 'Thou wilt keep him in perfect peace, whose mind is stayed on thee, because he trusteth in thee.' This verse illustrates that true peace stems from a steadfast mind that relies on God. The reconciliation through Christ’s sacrifice provides a peace that transcends earthly troubles. As believers, we are encouraged to trust the Lord forever, which in turn brings about a profound sense of peace in our lives amidst trials. This peace is a fruit of faith, engendered by assurance in God’s promises and character, highlighting the believer's security in Christ.