Deuteronomy 16:16

Three times each year shall all thy males appear before the LORD thy God in the place which he shall choose: in the solemn feast of unleavened bread and in the solemn feast of weeks and in the solemn feast of the tabernacles. And they shall not appear before the thy God in the place which he shall choose: in the solemn feast of unleavened bread and in the solemn feast of weeks and in the solemn feast of the tabernacles. And they shall not appear before the LORD empty