Exodus 23:14-19

14“Three times a year you shall celebrate a feast [dedicated] to Me.

15You shall observe the Feast of Unleavened Bread; for seven days you shall eat unleavened bread, as I commanded you, at the appointed time in the month of Abib, for in it you came out of Egypt. No one shall appear before Me empty-handed [but you shall bring sacrificial offerings].

16Also [you shall observe] the Feast of Harvest (Weeks, Pentecost, or First Fruits), acknowledging the first fruits of your labor, of what you sow in the field. And [third] the Feast of Ingathering (Booths or Tabernacles) at the end of the year when you gather in [the fruit of] your labors from the field.

17Three times a year all your males shall appear before the Lord God.

18“You shall not offer the blood of My sacrifice with leavened bread; and the fat of My feast is not to be left overnight until morning.

19“You shall bring the choice first fruits of your ground into the house of the Lord your God. “You shall not boil a young goat in its mother’s milk.