Daniel 9:1-3

21st Century King James Version

9 In the first year of Darius the son of Ahasuerus, of the seed of the Medes, who was made king over the realm of the Chaldeans”

² in the first year of his reign I, Daniel, came to understand by books the number of the years, according to the word of the Lord as it came to Jeremiah the prophet, that He would spend seventy years in the desolations of Jerusalem.

³ And I set my face unto the Lord God, seeking by prayer and supplications, with fasting, and sackcloth, and ashes.