'Ago' in the Bible

As for your donkeys which were lost three days ago, do not set your mind on them, for they have been found. And for whom is all that is desirable in Israel? Is it not for you and for all your father’s household?”

David said to him, “To whom do you belong? And where are you from?” And he said, “I am a young man of Egypt, a servant of an Amalekite; and my master left me behind when I fell sick three days ago.