'Fact' in the Bible

In fact, days are coming when I will remove your strength and the strength of your father's house. There will not be an old man in your house!

Taking an oath, David again said, "Your father is very much aware of the fact that I have found favor with you, and he has thought, 'Don't let Jonathan know about this, or he will be upset.' But as surely as the Lord lives and you live, there is about one step between me and death!"

Jonathan once again took an oath with David, because he loved him. In fact Jonathan loved him as much as he did his own life.

Now look, I realize that you will in fact be king and that the kingdom of Israel will be established in your hand.