Leviticus 27:26-29

Classes which may not be vowed

Firstlings are already the Lord's (Exodus 13:2). If the firstling is, that of an animal which is reckoned among the -unclean" (according to the rule laid down, ch. Leviticus 11:3), it is to be valued and redeemed at 1 1/5 of its valuation. Driver, Exodus 13:13 (J), points out that P's law, as given here, is more favourable to the priests. In Exod. the redemption is to be made by a lamb, a less valuable animal.