in the first year of his reign, I, Daniel, understood from the sacred books, according to the word of the LORD to Jeremiah the prophet, that the desolation of Jerusalem would last seventy years.

2 Chronicles 36:21
So the land enjoyed its Sabbath rest all the days of the desolation, until seventy years were completed, in fulfillment of the word of the LORD through Jeremiah.

Ezra 1:1
In the first year of Cyrus king of Persia, to fulfill the word of the LORD spoken through Jeremiah, the LORD stirred the spirit of Cyrus king of Persia to send a proclamation throughout his kingdom and to put it in writing as follows:

Jeremiah 1:1
These are the words of Jeremiah son of Hilkiah, one of the priests in Anathoth in the territory of Benjamin.

Jeremiah 25:11
And this whole land will become a desolate wasteland, and these nations will serve the king of Babylon for seventy years.

Jeremiah 25:12
But when seventy years are complete, I will punish the king of Babylon and that nation, the land of the Chaldeans, for their guilt, declares the LORD, and I will make it an everlasting desolation.

Jeremiah 29:10
For this is what the LORD says: "When Babylon's seventy years are complete, I will attend to you and confirm My promise to restore you to this place.

Daniel 9:3
So I turned my attention to the Lord God to seek Him by prayer and petition, with fasting, sackcloth, and ashes.

Zechariah 1:12
Then the angel of the LORD said, "How long, O LORD of Hosts, will You withhold mercy from Jerusalem and the cities of Judah, with which You have been angry these seventy years?"

Zechariah 7:5
"Ask all the people of the land and the priests, 'When you fasted and mourned in the fifth and seventh months for these seventy years, was it really for Me that you fasted?

In the first year of his reign I Daniel understood by books the number of the years, whereof the word of the LORD came to Jeremiah the prophet, that he would accomplish seventy years in the desolations of Jerusalem.