Leviticus 23:37
These are the set feasts of LORD, which ye shall proclaim to be holy convocations, to offer an offering made by fire to LORD, a burnt-offering, and a meal-offering, a sacrifice, and drink-offerings, each on its own day.
Leviticus 23:2
Speak to the sons of Israel, and say to them, The set feasts of LORD, which ye shall proclaim to be holy convocations, even these are my set feasts.
Leviticus 23:4
These are the set feasts of LORD, even holy convocations, which ye shall proclaim in their appointed season:
Deuteronomy 16:16-17
Three times in a year all thy males shall appear before LORD thy 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
Ecclesiastes 3:1
For everything there is a season, and a time for very purpose under heaven: