How do we know that God's salvation is for His people?

In Psalm 85:2, we find the affirmation that 'Thou hast forgiven the iniquity of thy people; thou hast covered all their sin.' This verse reflects the sovereignty of God in salvation and emphasizes that He has chosen His people for forgiveness. The doctrine of election is fundamental to Reformed theology, affirming that God's grace is not arbitrary but specific. The Lord's mercy is extended to those whom He has chosen, ensuring that their iniquities are not just overlooked but thoroughly dealt with in the atonement of Christ. This highlights the definite atonement—Christ died for His people, securing their redemption and justly satisfying God's demands against sin.