What does the Bible say about being established in faith?

In Romans 16:25-27, the Apostle Paul emphasizes that God has the power to establish believers according to the gospel and the preaching of Jesus Christ. It is through this gospel, which reveals the mystery kept secret since the world began, that we find our foundation. True establishment comes from knowing Christ and trusting in His work of salvation, rather than relying on our own understanding or efforts. This establishment is a divine work, assuring us that we are grounded in truth when we embrace the message of Christ crucified.