'Certainly' in the Bible

Then Saul said to Jonathan, "Tell me what you have done!" Jonathan told him, and said, "I certainly did taste a little honey with the end of the rod that was in my hand; and behold, I must die."

Please forgive the trespass of your handmaid. For Yahweh will certainly make my lord a sure house, because my lord fights the battles of Yahweh; and evil shall not be found in you all your days.

David therefore sent out spies, and understood that Saul had certainly come.