After this, Jesus, knowing that all things had already been accomplished, to fulfill the Scripture, said, “I am thirsty.” A jar full of sour wine was standing there; so they put a sponge full of the sour wine upon a branch of hyssop and brought it up to His mouth. Therefore when Jesus had received the sour wine, He said, “It is finished!” And He bowed His head and gave up His spirit. John 19:28-30
Jesus' dying declaration "It is finished!" described the finality of these four extremely important processes in our salvation:
1. Messianic prophecies had been fulfilled.
2. Jesus' sufferings had come to an end.
3. Jesus' perfect obedience had been rendered.
4. Jesus' atoning sacrifice had been completed.