Exodus 22:29-31

New Revised Standard Version, Anglicised Catholic Edition

²⁹ You shall not delay to make offerings from the fullness of your harvest and from the outflow of your presses.^[a]

The firstborn of your sons you shall give to me. ³⁰ You shall do the same with your oxen and with your sheep: for seven days it shall remain with its mother; on the eighth day you shall give it to me.

³¹ You shall be people consecrated to me; therefore you shall not eat any meat that is mangled by beasts in the field; you shall throw it to the dogs.