The cleansed leper was now in a position to avail himself of the accustomed law of sacrifice as one completely restored. The ewe lamb was now offered in his behalf as a sin-offering, one of the young rams as a burnt-offering, and the fine flour mingled with oil as a meat-offering.

And the priest shall offer the sin offering,.... This was the ewe lamb, according to the rite of every sin offering, as Aben Ezra says; and was typical of Christ, as all such offerings were, who was made sin and a sin offering for his people:

and make an atonement for him that was to be cleansed from his uncleanness; for it seems the atonement was not perfected by the trespass offering and all the preceding rites; but a sin offering was necessary both on account of moral uncleanness, the cause of the leprosy, and of ceremonial uncleanness by it:

and afterward he shall kill the burnt offering; the other he lamb; the burnt offering for the most part following the sin or trespass offering as a gift by way of thankfulness, atonement being made for sin by the other offerings; which also was typical of Christ, as all burnt offerings were.

It was not till all this had been done, that the priest could proceed to make expiation for him with the sin-offering, for which the ewe-lamb was brought, "on account of his uncleanness," i.e., on account of the sin which still adhered to him as well as to all the other members of the covenant nation, and which had come outwardly to light in the uncleanness of his leprosy; after which he presented his burnt-offering and meat-offering, which embodied the sanctification of all his members to the service of the Lord, and the performance of works well-pleasing to Him. The sin-offering, burnt-offering, and meat-offering were therefore presented according to the general instructions, with this exception, that, as a representation of diligence in good works, a larger quantity of meal and oil was brought than the later law in Numbers 15:4 prescribed for the burnt-offering.

And the priest shall offer the sin offering, and make an atonement for him that is to be cleansed from his uncleanness; and afterward he shall kill the burnt offering:

14:10-32 The cleansed leper was to be presented to the Lord, with his offerings. When God has restored us to enjoy public worship again, after sickness, distance, or otherwise, we should testify our thanksgiving by our diligent use of the liberty. And both we and our offerings must be presented before the Lord, by the Priest that made us clean, even our Lord Jesus. Beside the usual rites of the trespass-offering, some of the blood, and some of the oil, was to be put upon him that was to be cleansed. Wherever the blood of Christ is applied for justification, the oil of the Spirit is applied for sanctification; these two cannot be separated. We have here the gracious provision the law made for poor lepers. The poor are as welcome to God's altar as the rich. But though a meaner sacrifice was accepted from the poor, yet the same ceremony was used for the rich; their souls are as precious, and Christ and his gospel are the same to both. Even for the poor one lamb was necessary. No sinner could be saved, had it not been for the Lamb that was slain, and hath redeemed us to God with his blood.