'Secretly' in the Bible

Now Laban had gone to see to the cutting of the wool of his sheep; so Rachel secretly took the images of the gods of her father's house.

And Jacob went away secretly, without giving news of his flight to Laban the Aramaean.

And Laban said to Jacob, Why did you go away secretly, taking my daughters away like prisoners of war?

Then the memory of his dreams about them came back to Joseph, and he said to them, You have come secretly to see how poor the land is.