'Seventh' in the Bible

She wept before him the seven days that their feast lasted; and on the seventh day he told her, because she pressed him hard. Then she told the riddle to her countrymen.

And 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."