12 The priest will take one of the male lambs and the olive oil and present them as a guilt offering, lifting them up as a special offering before the Lord . 13 He will then slaughter the male lamb in the sacred area where sin offerings and burnt offerings are slaughtered. As with the sin offering, the guilt offering belongs to the priest. It is a most holy offering. 14 The priest will then take some of the blood of the guilt offering and apply it to the lobe of the right ear, the thumb of the right hand, and the big toe of the right foot of the person being purified. 15 "Then the priest will pour some of the olive oil into the palm of his own left hand. 16 He will dip his right finger into the oil in his palm and sprinkle some of it with his finger seven times before the Lord . 17 The priest will then apply some of the oil in his palm over the blood from the guilt offering that is on the lobe of the right ear, the thumb of the right hand, and the big toe of the right foot of the person being purified.
Matthew Henry's Commentary on Leviticus 14:12-17
Commentary on Leviticus 14:10-32
(Read Leviticus 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.