'Fourth' in the Bible

When it was the fourth day, they said to Samson's wife, "Entice your husband and tell us the riddle, or we will burn you and your father's house with fire. Have you invited us to rob us?"

On the fourth day, they rose early in the morning, and he prepared to go, but the father of the young woman said to his son-in-law, "{Refresh yourself} [with] a bit of food, and afterward you may go."