How do we know that salvation is by God's choosing?

Scripture makes it clear that salvation is not a result of human effort or decision, but rather a divine initiative. In passages like Ephesians 1:4-5 and Romans 8:29-30, we see that God chose His people before the foundation of the world and predestined them to be conformed to the image of His Son. This doctrine of election underscores that it is God who actively intervenes in the hearts of the wicked and dead in sin to bring about faith and repentance. The calling of the Gospel is effective for God's elect, who are made to hear His voice and respond in faith. This truth highlights God's sovereignty and ensures that He alone receives glory for saving sinners.