'Fourth' in the Bible

On the fourth day they said to Samson’s wife, “Persuade your husband to explain the riddle to us, or we will burn you and your father’s household to death. Did you invite us here to rob us?”

On the fourth day, they got up early in the morning and prepared to go, but the girl’s father said to his son-in-law, “Have something to eat to keep up your strength and then you can go.”