Leviticus 5:7

And if he be not able to bring. — The only exception to this general rule was poverty. The poor man who was unable to bring a sheep or she-goat, might bring two turtle-doves, as these were plentiful and cheap in Palestine. (See Leviticus 1:14.) We have seen in the preceding verse that in the case of the trespass offering, as in that of the sin offering, the fat parts, or the choicest portion, had to be consumed on the altar, being “the bread of Jehovah,” and that the residue was the perquisite of the priests. As the fat parts of the dove, or the portion for the altar, could not be separated from the bird, and as the burning of it wholly would destroy the character of the trespass offering, and make it into a whole burnt offering, two doves were brought. One represented the portion for the Lord, and hence was burnt on the altar, whilst the flesh of the other became the perquisite of the officiating priest.