Cross reference
2 Chronicles 30:23
23 And all the assembly take counsel to keep other seven days, and they keep seven days `with' joy;
1 Kings 8:65
65 And Solomon maketh, at that time, the festival -- and all Israel with him, a great assembly from the entering in of Hamath unto the brook of Egypt -- before Jehovah our God, seven days and seven days; fourteen days.
2 Chronicles 7:9
9 And they make on the eighth day a restraint, because the dedication of the altar they have made seven days, and the feast seven days.