'Secretly' in the Bible

Then Zedekiah the king sent, and took him out: and the king asked him secretly in his house, and said, Is there any word from the LORD? And Jeremiah said, There is: for, said he, thou shalt be delivered into the hand of the king of Babylon.

So Zedekiah the king sware secretly unto Jeremiah, saying, As the LORD liveth, that made us this soul, I will not put thee to death, neither will I give thee into the hand of these men that seek thy life.

Then Johanan the son of Kareah spake to Gedaliah in Mizpah secretly, saying, Let me go, I pray thee, and I will slay Ishmael the son of Nethaniah, and no man shall know it: wherefore should he slay thee, that all the Jews which are gathered unto thee should be scattered, and the remnant in Judah perish?