Summary: When Jesus said, “It Is Finished,” It Was Really Just The Beginning
It Was Just The Beginning For Me
I. “It Is Finished,” Finalized Salvation
Jesus finalizes salvation for all of mankind. His work on the cross is singular. It stands alone.
This was His cry of victory. Jesus Finalized Salvation for the world in three words
What was begun before the creation of the world was now finished - God’s redemptive plan.
By the way a finished product needs no change or alternate, it is sufficient within.
Note He left nothing undone, and by faith we can appropriate all that He did.
In Hebrews 9:12-14 (quickview)  It say’s, “Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us.  For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh:  How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?”
Note that three significant things are said in this verse.
1. Jesus Christ, the perfect High Priest, did not sacrifice the blood of animals for the sins of man; He sacrificed His own blood.
He offered up His life as a sacrifice to God—as the sacrifice for the life of the people. Jesus Christ bore the guilt and judgment for the sins of man. Why would He do this? Because He is the Son of God and He loves man. He is the Son of God who came to earth as the God-Man; He is the Ideal and Perfect Man. As the Ideal Man, whatever He does stands for and covers all men. Therefore, His blood covers the sins of all men who believe and trust Him. His sacrifice is the perfect and ideal sacrifice—the sacrifice that stands for and covers all men.
2. Jesus Christ, the perfect High Priest, entered into the Holy of Holies of heaven itself.
But note: He had to enter only once. The earthly High Priest had to make continued sacrifices, but Jesus Christ had to make only one sacrifice. Why? Because His sacrifice was the perfect and ideal sacrifice. Being perfect and ideal, it could stand forever for every man of every generation.
3. Jesus Christ, the perfect High Priest, obtained eternal redemption for us.
Sin, death, and condemnation have captured and kidnapped man. No man can escape from either one, no matter what he does. But Jesus Christ made it possible for man to be freed and delivered from all enemies. How? He paid the ransom price. He substituted Himself for man. He gave His life—sacrificed His life for man. He could do this because He is the perfect and ideal Man. Since He chose to sacrifice His life for man, He has become the perfect and ideal sacrifice. This is exactly what He has done. He has redeemed and ransomed man from sin, death, and condemnation.