Leviticus 14:21

“And if he [be] poor, and cannot get so much, etc.] As three lambs, and three tenth deals of fine flour: then he shall take one lamb [for] a trespass offering to be waved, to make an atonement for him; one he lamb, and was excused the other he lamb for a burnt offering, and the ewe lamb for a sin offering; but a lamb he must bring, a type of Christ the Lamb of God, for without his blood and sacrifice there is no atonement for rich poor, but for both thereby: and one tenth deal of flour mingled with oil for a meat offering: instead three tenth deals; this abatement in the several kinds of offerings was a great indulgence to the poor, and an instance of God’s goodness to them, that they might…”

“if he be poor, and cannot get so much; then he shall take one lamb--a kind and considerate provision for an extension of the privilege to lepers of the poorer class. The blood of their smaller offering was to be applied in the same process of purification and they were as publicly and completely cleansed as those who brought a costlier offering (Act 10:34).”

“14:21-32 The ritual for the poor was very similar to the conventional purification offering, but it allowed for the use of less expensive birds in place of a lamb (see 5:7-13).”

“poor: Lev 1:14, Lev 5:7, Lev 12:8; Sa1 2:8; Job 34:19; Pro 17:5, Pro 22:2; Luk 6:20, Luk 21:2-4; Co2 8:9, Co2 8:12; Jam 2:5, Jam 2:6 cannot: Heb. his hand reach not one lamb: Lev 14:10 to be waved: Heb. for a waving Leviticus 14:22”