Exodus 22:30

30 You must do the same with your bulls and your sheep. Let the firstborn males stay with their mothers for seven days, and on the eighth day you must give them to me.

Exodus 22:30 In-Context

28 "You must not speak against God or curse a leader of your people.
29 "Do not hold back your offering from the first of your harvest and the first wine that you make. Also, you must give me your firstborn sons.
30 You must do the same with your bulls and your sheep. Let the firstborn males stay with their mothers for seven days, and on the eighth day you must give them to me.
31 "You are to be my holy people. You must not eat the meat of any animal that has been killed by wild animals. Instead, give it to the dogs.
Scripture taken from the New Century Version. Copyright © 1987, 1988, 1991 by Thomas Nelson, Inc. Used by permission. All rights reserved.