JESUS'S LAST MOMENTS ON THE CROSS.
JHN19.28. After this, Jesus knowing that all things were now accomplished, that the scripture might be fulfilled, saith, I thirst.
29.Now there was set a vessel full of vinegar: and they filled a sponge with vinegar, and put it upon hyssop, and put it to his mouth.
30.When Jesus therefore had received the vinegar, he said, It is finished: and he bowed his head, and gave up the ghost.
Jesus did not say, "I am finished" This would have sounded like words of resignation. Rather he said "it is finished" which are words of proclamation. He has received in His mighty heart the sins of the whole world. Now was the moment to announce as loudly as His crucified state would allow the triumphant news that He had finished the work His Father had given Him to do.