'Seventh' in the Bible

So Hananiah the prophet died the same year in the seventh month.

Now it came to pass in the seventh month, that Ishmael the son of Nethaniah the son of Elishama, of the seed royal, and the princes of the king, even ten men with him, came unto Gedaliah the son of Ahikam to Mizpah; and there they did eat bread together in Mizpah.

This is the people whom Nebuchadrezzar carried away captive: in the seventh year three thousand Jews and three and twenty:

On the twenty-fifth day of the twelfth month of the thirty-seventh year of the exile of Judah’s King Jehoiachin, Evil-merodach king of Babylon, in the first year of his reign, pardoned King Jehoiachin of Judah and released him from prison.