Ezekiel 36:38
As the holy flock, as the flock of Jerusalem in her solemn feasts; so shall the waste cities be filled with flocks of men: and they shall know that I am the LORD.
Nave's Topical Index—AKJV

Deuteronomy 16:16
Three times in a year shall all your males appear before the LORD your God in the place which he shall choose; in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles: and they shall not appear before the LORD empty:
Nave's Topical Index—AKJV