'Ago' in the Bible

And as for the asses that thou didst lose three days ago, set not thy heart on them; for they are found. And on whom is all the desire of Israel set? Is it not on thee, and on all thy father's house?

And David said to him, To whom belongest thou? and whence art thou? And he said, I am a young man of Egypt, servant of an Amalekite; and my master left me, because three days ago I fell sick.