Deuteronomy 15:19-23 - Consecration Of Firstborn Animals
19 Every firstling that is born in thy herd and in thy flock -- the male thou dost sanctify to Jehovah thy God; thou dost not work with the firstling of thine ox, nor shear the firstling of thy flock; 20 before Jehovah thy God thou dost eat it year by year, in the place which Jehovah doth choose, thou and thy house. 21 'And when there is in it a blemish, lame, or blind, any evil blemish, thou dost not sacrifice it to Jehovah thy God; 22 within thy gates thou dost eat it, the unclean and the clean alike, as the roe, and as the hart. 23 Only, its blood thou dost not eat; on the earth thou dost pour it as water.