Jesus Christ died as the complete and final sacrifice for our sins. In Hebrews 9:27-28 it says, 27 Just as man is destined to die once, and after that to face judgement, 28 so Christ was sacrificed once to take away the sins of the people; and he will appear a second time, not to bear sin, but to bring salvation to those who are waiting for him. Just like we only die once physically, Christ died once so we would not have to die spiritually. We have a confidence He died for our past, present, and future sin, which gives us eternal salvation from spiritual death.