Exodus 34:18-26
34:18 “You must keep the Feast of Unleavened Bread. For seven days you must eat bread made without yeast, as I commanded you; do this at the appointed time of the month Abib, for in the month Abib you came out of Egypt.
34:19 “Every firstborn of the womb belongs to me, even every firstborn of your cattle that is a male, whether ox or sheep.
34:20 Now the firstling of a donkey you may redeem with a lamb, but if you do not redeem it, then break its neck. You must redeem all the firstborn of your sons.
“No one will appear before me empty-handed.
34:21 “On six days you may labor, but on the seventh day you must rest; even at the time of plowing and of harvest you are to rest.
34:22 “You must observe the Feast of Weeks – the firstfruits of the harvest of wheat – and the Feast of Ingathering at the end of the year.
34:23 At three times in the year all your men must appear before the Lord God, the God of Israel.
34:24 For I will drive out the nations before you and enlarge your borders; no one will covet your land when you go up to appear before the Lord your God three times in the year.
34:25 “You must not offer the blood of my sacrifice with yeast; the sacrifice from the feast of Passover must not remain until the following morning.
34:26 “The first of the firstfruits of your soil you must bring to the house of the Lord your God.
You must not cook a young goat in its mother’s milk.”