2 Chronicles 7:9
And in the eighth day they made a solemn assembly: for they observed the dedication of the altar seven days, and the feast seven days.
Leviticus 23:36
Seven days you shall offer an offering made by fire unto the LORD: on the eighth day shall be a holy convocation unto you; and you shall offer an offering made by fire unto the LORD: it is a solemn assembly; and you shall do no regular work on it.
Deuteronomy 16:8
Six days you shall eat unleavened bread: and on the seventh day shall be a solemn assembly to the LORD your God: you shall do no work therein.
1 Kings 8:65
And at that time Solomon held a feast, and all Israel with him, a great assembly, from the entrance of Hamath unto the river of Egypt, before the LORD our God, seven days and seven days, even fourteen days.
2 Chronicles 30:23
And the whole assembly took counsel to keep another seven days: and they kept another seven days with gladness.
Nehemiah 8:18
Also day by day, from the first day unto the last day, he read in the book of the law of God. And they kept the feast seven days; and on the eighth day was a solemn assembly, according to the ordinance.
Joel 1:14
Sanctify you a fast, call a solemn assembly, gather the elders and all the inhabitants of the land into the house of the LORD your God, and cry unto the LORD.