When Jesus uttered the dying proclamation: “It is finished“….Jesus was speaking of His primary purpose for having entered the Realm of Time; that is, to fulfill Genesis 3:15 and Genesis 3:21 which were a proclamation of Elohim’s war and the battle strategy concerning defeating the works of Satan (death, Hell, the grave). This is why Messiah entered Time.

“the one who practices sin is of the devil; for the devil has been sinning from the beginning. The Son of God appeared for this purpose, to destroy the works of the devil.” 1 John 3:8b (NASB)