Zechariah 7:5

7:5 “Speak to all the people and priests of the land as follows: ‘When you fasted and lamented in the fifth and seventh months through all these seventy years, did you truly fast for me – for me, indeed?

Zechariah 7:2

7:2 Now the people of Bethel had sent Sharezer and Regem-Melech and their companions to seek the Lord’s favor

Zechariah 1:21

1:21 I asked, “What are these going to do?” He answered, “These horns are the ones that have scattered Judah so that there is no one to be seen. But the blacksmiths have come to terrify Judah’s enemies and cut off the horns of the nations that have thrust themselves against the land of Judah in order to scatter its people.”

Jeremiah 25:11-12

25:11 This whole area will become a desolate wasteland. These nations will be subject to the king of Babylon for seventy years.’

25:12 “‘But when the seventy years are over, I will punish the king of Babylon and his nation for their sins. I will make the land of Babylon an everlasting ruin. I, the Lord, affirm it!

Jeremiah 29:10

29:10 “For the Lord says, ‘Only when the seventy years of Babylonian rule are over will I again take up consideration for you. Then I will fulfill my gracious promise to you and restore you to your homeland.

Daniel 9:2

9:2 in the first year of his reign I, Daniel, came to understand from the sacred books that, according to the word of the LORD disclosed to the prophet Jeremiah, the years for the fulfilling of the desolation of Jerusalem were seventy in number.