'Ago' in the Bible

As for your donkeys which were lost three days ago, do not be concerned about them, for they have been found. And for whom are all things that are desirable in Israel? Are they not for you and for all your father’s household (family)?”

David said to him, “To whom do you belong, and where are you from?” He said, “I am a young man from Egypt, a servant of an Amalekite; and my master abandoned me [as useless] when I fell sick three days ago.