Daniel 12 begins with the words 'at that time,' so the line must be read as the continuation of Daniel 11:44-45. The final king of the north has moved against God's people, the last crisis has reached its height, and then heaven answers. Michael stands up, the great Prince who stands for the children of Daniel's people.
Because Daniel 12 continues the final vision introduced in Daniel 10, its historical setting belongs to the third year of Cyrus, about 536/535 B.C. Daniel is living after Babylon's fall and after the return decree, yet the vision carries him far beyond the early Persian restoration into the final crisis, deliverance, resurrection, and unsealing of the book.
According to Scripture, Michael is another name or title for Christ in His role as heavenly Commander and Defender. Daniel 10:13 and 10:21 introduce Michael in direct conflict with the spiritual powers behind Persia and Greece. Jude 9 shows Michael contending with the devil. Revelation 12:7 shows Michael and His angels at war against the dragon. Daniel 12:1 brings that same victorious Christ to the final defense of His people. He is not a created rival to Satan; He is the divine Prince who wins every conflict in which He appears.
The phrase 'stand up' carries judgment, royal, and military force. Daniel 7 shows the court seated and the books opened. Hebrews repeatedly pictures Christ seated at the right hand of God as High Priest, Mediator, and Finisher of faith. Daniel 12 looks to the moment when His mediatorial work is finished, His people are sealed, and He rises to deliver them. The close of probation is not presented as a cold legal moment. It is the moment when Christ stands for those whose names remain in the book.
The time of trouble follows Michael's standing. It is more intense than any crisis before it, yet the line does not center fear. It centers deliverance. Every one found written in the book is delivered. The final issue is not whether God's people are strong enough to survive world opposition, but whether Christ stands for them. Their safety is in His victory, His intercession, His judgment, and His covenant faithfulness.
The line makes readiness deeply personal. The question is not curiosity about final events, but whether the life is surrendered to Christ now. The people delivered then are the people who let Him write His law in their hearts, cleanse their lives, and keep their names in His book.