2 Chronicles 7:8-10 NIV

8 So Solomon observed the festival at that time for seven days, and all Israel with him—a vast assembly, people from Lebo Hamath to the Wadi of Egypt.

References for 2 Chronicles 7:8

9 On the eighth day they held an assembly, for they had celebrated the dedication of the altar for seven days and the festival for seven days more.

References for 2 Chronicles 7:9

10 On the twenty-third day of the seventh month he sent the people to their homes, joyful and glad in heart for the good things the LORD had done for David and Solomon and for his people Israel.