What does the Bible say about Christ's authority in dying?

In John 19:30, Jesus declares, 'It is finished,' highlighting the authority and volition behind His death. Unlike mortal man, who dies because of the necessity of sin, Christ's death was voluntary. His authority in dying is evident as He resigns His spirit, a clear demonstration of His power over life and death. The phrase indicates both the culmination of His redemptive work and the control He maintained in His final moments, affirming that He was not a victim but willingly laid down His life.