Yahweh spoke to Moses and said: “Speak to the children of Israel and tell them: Yahweh's solemn festivals, which you will proclaim as holy convocation, will be these. The Seventh Day will be a holy convocation, you will not do any work. ; The Sabbath is Yahweh's wherever you live (Leviticus 23: 3). These festivals were not instituted by any man, but by Yahweh himself, so that his people can appear before him in a holy convocation. To learn more about our feasts, click here .