23 the congregation took counsel together to keep other seven days, and kept other seven days with gladness.
2 Chronicles 30:23 Cross References - Thomson
1 Kings 8:65
65 And on that day Solomon and all Israel with him; a great congregation from the bay of Emath to the river of Egypt, celebrated the festival before the Lord our God at the house which he had built; eating and drinking and rejoicing before the Lord seven days.
2 Chronicles 7:9
9 And on the eighth day he made a finishing feast, for he had celebrated the dedication of the altar with a festival of seven days.