'Fourth' in the Bible

On the fourth day they said to Samson's bride, "Trick your husband into giving the solution to the riddle. If you refuse, we will burn up you and your father's family. Did you invite us here to make us poor?"

On the fourth day they woke up early and the Levite got ready to leave. But the girl's father said to his son-in-law, "Have a bite to eat for some energy, then you can go."