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.
2 Chronicles 36:21 Cross References - BSB
Leviticus 25:4-6
4 But in the seventh year there shall be a Sabbath of complete rest for the land—a Sabbath to the LORD. You are not to sow your field or prune your vineyard.
5 You are not to reap the aftergrowth of your harvest or gather the grapes of your untended vines. The land must have a year of complete rest.
6 Whatever the land yields during the Sabbath year shall be food for you—for yourself, your manservant and maidservant, the hired hand or foreigner who stays with you,
Leviticus 26:34-35
Leviticus 26:43
43 For the land will be abandoned by them, and it will enjoy its Sabbaths by lying desolate without them. And they will pay the penalty for their iniquity, because they rejected My ordinances and abhorred My statutes.
Jeremiah 25:9
9 behold, I will summon all the families of the north, declares the LORD, and I will send for My servant Nebuchadnezzar king of Babylon, whom I will bring against this land, against its residents, and against all the surrounding nations. So I will devote them to destruction and make them an object of horror and contempt, an everlasting desolation.
Jeremiah 25:11-12
11 And this whole land will become a desolate wasteland, and these nations will serve the king of Babylon for seventy years.
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 26:6-7
Jeremiah 27:12-13
12 And to Zedekiah king of Judah I spoke the same message: “Put your necks under the yoke of the king of Babylon; serve him and his people, and live!
13 Why should you and your people die by sword and famine and plague, as the LORD has decreed against any nation that does not serve the king of Babylon?
Jeremiah 29:10
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 9:2
2 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.
Zechariah 1:4-6
4 Do not be like your fathers, to whom the former prophets proclaimed that this is what the LORD of Hosts says: ‘Turn now from your evil ways and deeds.’ But they did not listen or pay attention to Me, declares the LORD.
5 Where are your fathers now? And the prophets, do they live forever?
6 But did not My words and My statutes, which I commanded My servants the prophets, overtake your fathers? They repented and said, ‘Just as the LORD of Hosts purposed to do to us according to our ways and deeds, so He has done to us.’”
Zechariah 1:12
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?”