Christ's death and resurrection are foundational to us as Christians. On Easter, we celebrate Christ as our sacrificial lamb and Christ as our risen king. For through his sacrifice, we have now been made perfect and through his resurrection, we now stand in victory over sin and death with him.
"And every priest stands daily at his service, offering repeatedly the same sacrifices, which can never take away sins. But when Christ had offered for all time a single sacrifice for sins, he sat down at the right hand of God, waiting from that time until his enemies should be made a footstool for his feet. For by a single offering he has perfected for all time those who are being sanctified." Hebrews 10:11-14