2 Chronicles 7:8 in the King James Version
Also at the same time Solomon kept the feast seven days, and all Israel with him, a very great congregation, from the entering in of Hamath unto the river of Egypt.
Context
7 Moreover Solomon made the middle of the court that was before the LORD’s house holy; for there he offered the burnt offerings and the fat of the peace offerings, because the bronze altar which Solomon had made was not able to receive the burnt offering, the meal offering, and the fat.
8 So Solomon held the feast at that time for seven days, and all Israel with him, a very great assembly, from the entrance of Hamath to the brook of Egypt.
9 On the eighth day, they held a solemn assembly; for they kept the dedication of the altar seven days, and the feast seven days.