How do we know salvation is finished according to Scripture?

The concept of finished salvation is deeply rooted in scripture, particularly highlighted by Jesus' declaration on the cross, 'It is finished' (John 19:30). This statement signifies the completion of Christ's work of redemption for His people, showing that He fully accomplished the purposes for which He was sent. The belief that salvation is a finished act aligns with God's sovereignty and the assurance that those Christ came to save will indeed be saved, as nothing can thwart His divine plan.