Exodus 22:28-31 - Regulations Regarding Tribute And Holiness
28 "You must not blaspheme God or curse the ruler of your people.
29 "Do not hold back offerings from your granaries or your vats. You must give me the firstborn of your sons. 30 You must also do this for your oxen and for your sheep; seven days they may remain with their mothers, but give them to me on the eighth day.
31 "You will be holy people to me; you must not eat any meat torn by animals in the field. You must throw it to the dogs.