Exodus 23:14-18

“Three times a year you shall celebrate a feast to Me.

You shall keep the Feast of Unleavened Bread; for seven days you are to eat unleavened bread, as I commanded you, at the appointed time in the month of Abib, for in that month you came out of Egypt. And no one is to appear before Me empty-handed.

Also you shall keep the Feast of the Harvest of the first fruits of your labors from what you sow in the field; also the Feast of the Ingathering at the end of the year when you gather in the fruit of your labors from the field.

Three times a year all your males shall appear before the Lord God.

“You shall not offer the blood of My sacrifice with leavened bread; nor is the fat of My feast to remain overnight until morning.