'Secretly' in the Bible

Then Zedekiah the king sent, and fetched him: and the king asked him secretly in his house, and said, Is there any word from Yahweh? Jeremiah said, There is. He said also, You shall be delivered into the hand of the king of Babylon.

So Zedekiah the king swore secretly to Jeremiah, saying, As Yahweh lives, who made us this soul, I will not put you to death, neither will I give you into the hand of these men who seek your life.

Then Johanan the son of Kareah spoke to Gedaliah in Mizpah secretly, saying, Please let me go, and I will kill Ishmael the son of Nethaniah, and no man shall know it: why should he take your life, that all the Jews who are gathered to you should be scattered, and the remnant of Judah perish?