'Afford' in the Bible
"'If he can't afford a lamb, then he shall bring his trespass offering for that in which he has sinned, two turtledoves, or two young pigeons, to Yahweh; one for a sin offering, and the other for a burnt offering.
"'But if he can't afford two turtledoves, or two young pigeons, then he shall bring his offering for that in which he has sinned, the tenth part of an ephah of fine flour for a sin offering. He shall put no oil on it, neither shall he put any frankincense on it, for it is a sin offering.
If she cannot afford a lamb, then she shall take two turtledoves, or two young pigeons; the one for a burnt offering, and the other for a sin offering: and the priest shall make atonement for her, and she shall be clean.'"
"If he is poor, and can't afford so much, then he shall take one male lamb for a trespass offering to be waved, to make atonement for him, and one tenth of an ephah of fine flour mingled with oil for a meal offering, and a log of oil;
and two turtledoves, or two young pigeons, such as he is able to afford; and the one shall be a sin offering, and the other a burnt offering.
He shall offer one of the turtledoves, or of the young pigeons, such as he is able to afford,
even such as he is able to afford, the one for a sin offering, and the other for a burnt offering, with the meal offering. The priest shall make atonement for him who is to be cleansed before Yahweh."
This is the law for him in whom is the plague of leprosy, who is not able to afford the sacrifice for his cleansing.