How do we know God's justice and mercy are important?

The interplay of God's justice and mercy is evident in the story of Cain, who, despite committing murder, was marked to prevent his death, showcasing God’s mercy even in judgment. This reflects a biblical principle where God provides opportunities for repentance and teaches that no person can overcome sin or its consequences on their own. Redemption only comes through Christ, our appointed substitute, who takes upon Himself the punishment we deserve and offers us His righteousness. Understanding God's justice and mercy shapes our worship and reliance upon Him.