Exodus 23:19

19 “As you harvest your crops, bring the very best of the first harvest to the house of the LORD your God. “You must not cook a young goat in its mother’s milk.

Exodus 23:19 In-Context

17 At these three times each year, every man in Israel must appear before the Sovereign, the LORD .
18 “You must not offer the blood of my sacrificial offerings together with any baked goods containing yeast. And do not leave the fat from the festival offerings until the next morning.
19 “As you harvest your crops, bring the very best of the first harvest to the house of the LORD your God. “You must not cook a young goat in its mother’s milk.
20 “See, I am sending an angel before you to protect you on your journey and lead you safely to the place I have prepared for you.
21 Pay close attention to him, and obey his instructions. Do not rebel against him, for he is my representative, and he will not forgive your rebellion.
Holy Bible. New Living Translation copyright© 1996, 2004, 2007, 2013 by Tyndale House Foundation. Used by permission of Tyndale House Publishers Inc., Carol Stream, Illinois 60188. All rights reserved.