Exodus 34:22-26

You shall celebrate the Feast of Weeks, that is, the first fruits of the wheat harvest, and the Feast of Ingathering at the turn of the year. Three times a year all your males are to appear before the Lord GOD, the God of Israel. For I will drive out nations before you and enlarge your borders, and no man shall covet your land when you go up three times a year to appear before the LORD your God. “You shall not offer the blood of My sacrifice with leavened bread, nor is the sacrifice of the Feast of the Passover to be left over until morning. “You shall bring the very first of the first fruits of your soil into the house of the LORD your God. “ Y ou shall not boil a young goat in its mother’s milk.”