Why is the gospel considered powerful for salvation?

According to Romans 1:16, the gospel is described as the power of God unto salvation to everyone that believes. This declaration underscores the profound transformative ability of the gospel message to change lives and offer redemption to sinners. Through the preaching of the cross, the righteousness of God is revealed, showing that salvation is not based on human works but on Christ's sacrifice. The effectiveness of the gospel lies in its divine authority to regenerate hearts, bringing about true faith and repentance.