Leviticus 23:37
These are Jehovah's appointed festivals. Announce them as holy assemblies for bringing sacrifices by fire to Jehovah. Bring burnt offerings, grain offerings, other sacrifices, and wine offerings-each one on its special day.
Leviticus 23:2
Tell the Israelites: 'These are the appointed festivals with Jehovah. You must announce these as holy assemblies.
Leviticus 23:4
The following are Jehovah's appointed festivals with holy assemblies. You must announce these at their appointed times.
Deuteronomy 16:16-17
Three times a year all your men must come into the presence of Jehovah your God at the place he will choose. At the Festival of Unleavened Bread, the Festival of Weeks, and the Festival of Booths. But no one may come into the presence of Jehovah without an offering.
Ecclesiastes 3:1
For everything there is a season. There is a time for every purpose under the sun.