How do we know God's mercy is available for the wicked?

Isaiah 55:7 states, 'Let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the Lord, and he will have mercy upon him.' This verse offers hope to all who feel condemned and acknowledges God's willingness to forgive. The key to experiencing this mercy is the act of forsaking one's sinful ways and turning back to God. This reflects a submission to His authority and a recognition of our need for His grace. Historic Reformed theology affirms that God's mercy is not contingent upon human merit but is rooted in His character, reflecting the vastness of His love for sinners.