What does it mean that Jesus said, 'It is finished'?

When Jesus uttered 'It is finished' (John 19:30), He was declaring that the work of atonement was fully completed. This phrase indicates the discharge of sin's debt, confirming that all requirements of God's law had been met through His sacrifice. In the Greek, this term conveys the sense of a debt being paid in full. This proclamation not only signifies the culmination of His earthly ministry but also assures believers that the penalty for sin has been satisfied, allowing for reconciliation with God. Consequently, this underscores the assurance of salvation for those whom He has redeemed.