Daniel 12:1-4 (KJV) And at that time shall Michael stand up, the great prince which standeth for the children of thy people: and there shall be a time of trouble, such as never was since there was a nation even to that same time: and at that time thy people shall be delivered, every one that shall be found written in the book. And many of them that sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt. And they that be wise shall shine as the brightness of the firmament; and they that turn many to righteousness as the stars for ever and ever. But thou, O Daniel, shut up the words, and seal the book, even to the time of the end: many shall run to and fro, and knowledge shall be increased.
Luke 2:25-32 (KJV) And, behold, there was a man in Jerusalem, whose name was Simeon; and the same man was just and devout, waiting for the consolation of Israel: and the Holy Ghost was upon him. And it was revealed unto him by the Holy Ghost, that he should not see death, before he had seen the Lord's Christ. And he came by the Spirit into the temple: and when the parents brought in the child Jesus, to do for him after the custom of the law, Then took he him up in his arms, and blessed God, and said, Lord, now lettest thou thy servant depart in peace, according to thy word: For mine eyes have seen thy salvation, Which thou hast prepared before the face of all people; A light to lighten the Gentiles, and the glory of thy people Israel.
The fulfillment of salvation through the work of Christ, when all who would be delivered, those who are found written in the book, recorded through the prophet Daniel was finished through the cross and resurrection when salvation came to the children of God, but began when Christ was born. When Christ was born there was a great war in heaven between Michael the Chief Messenger (Christ) of God, and His messengers, and Satan and His demonic messengers. By the birth of Christ salvation had finally come to the earth for all who are ordained to be saved. The birth of Christ began fulfillment, and the cross and resurrection completed the work Christ was given that the children of God would be eternally saved.