What role does God play in establishing believers according to the gospel?

In the context of Romans 16:25, God is portrayed as having the power to establish His people according to the gospel. This implies that it isn't through human effort or merit that believers are secured in their faith; rather, it is a sovereign act of God. He not only initiates the saving process but also sustains and strengthens believers throughout their spiritual journey. The idea of being established involves a heart transformation that leads to obedience of faith, emphasizing that our relationship with God and our ability to walk in holiness is entirely dependent upon His work in us. This underscores the grace of God and the necessity of relying entirely upon Him for our spiritual growth and stability.