'Seventh' in the Bible

She wept before him the seven days of their feast; and it happened, because she nagged him, on the seventh day he explained [it] to her, and she told the riddle to {her people}.

The men of the city said to him on the seventh day before the sun went [down], "What [is] sweeter than honey? What [is] stronger than a lion?" And he said to them, "If you had not plowed with my heifer, you would not have found out my riddle."