Leviticus 14:22

And two turtledoves, or two young pigeons, such as he is able to get,.... As good as he can get for his money, or his money he is possessed of will purchase; but if he was not able to purchase these of the better sort, the best he could get would be acceptable; so indulgent, kind, and merciful was God to the poor in this case; these were instead of the other two lambs required of those that were able to bring them, and answered all the purposes of them:

and the one shall be a sin offering, and the other a burnt offering: one of the turtledoves or one of the young pigeons should be for the one, and the other for the other; so that the poor man had as many offerings for his atonement and cleansing as the rich, and his expiation and purgation were as complete as theirs.