'Beginning' in the Bible

At the beginning of your requests a message went out, and I have come to convey it to you, for you are of great value in God's sight. Therefore consider the message and understand the vision:

"At that time Michael, the great prince who watches over your people, will arise. There will be a time of distress unlike any other from the nation's beginning up to that time. But at that time your own people, all those whose names are found written in the book, will escape.