Jeremiah 25:11-12

25:11 And this whole land shall be a desolation, [and] an astonishment; and these nations shall serve the king of Babylon seventy years. 25:12 And it shall come to pass, when seventy years are accomplished, [that] I will punish the king of Babylon, and that nation, saith the LORD, for their iniquity, and the land of the Chaldeans, and will make it perpetual desolations.

Jeremiah 52:31-34

52:31 And it came to pass in the seven and thirtieth year of the captivity of Jehoiachin king of Judah, in the twelfth month, in the five and twentieth [day] of the month, [that] Evilmerodach king of Babylon in the [first] year of his reign lifted up the head of Jehoiachin king of Judah, and brought him forth out of prison, 52:32 And spake kindly unto him, and set his throne above the throne of the kings that [were] with him in Babylon, 52:33 And changed his prison garments: and he did continually eat bread before him all the days of his life. 52:34 And [for] his diet, there was a continual diet given him of the king of Babylon, every day a portion until the day of his death, all the days of his life.

Daniel 9:2

9:2 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.