It is most holy - See Leviticus 6:25 note.

And he shall slay the lamb,.... The priest, or the butcher, as the Targum of Jonathan, the slaughterer, the priest appointed for that service; at which time both the hands of the leper were laid upon it, as says the Misnah (p); for though the leper might not go into the court as yet, the sacrifice was brought to the door of the tabernacle for him to put his hands on it: so Maimonides (q) relates; the trespass offering of the leper is brought to the door, and he puts both his hands into the court, and lays them on it, and they immediately slay it:

in the place where he shall kill the sin offering in the holy place; in the court of the tabernacle, on the north side of the altar, as Jarchi observes, see Leviticus 1:11,

for as the sin offering is the priest's, so is the trespass offering; and to be eaten by him and his sons in the holy place, and by none but them, see Leviticus 6:26,

it is most holy; which is the reason why none else might eat of it, typical of Christ the most Holy, whose flesh is only eaten by true believers in him, made priests unto God by him.

(p) Negaim, c. 14. sect. 8. (q) Ut supra. (Hilchot Mechosre Capharah, c. 4. sect. 2.)

After the slaying of the lamb in the holy place, as the trespass-offering, like the sin-offering, was most holy and belonged to the priest (see at Leviticus 7:6), the priest put some of its blood upon the tip of the right ear, the right thumb, and the great toe of the right foot of the person to be consecrated, in order that the organ of hearing, with which he hearkened to the word of the Lord, and those used in acting and walking according to His commandments, might thereby be sanctified through the power of the atoning blood of the sacrifice; just as in the dedication of the priests (Leviticus 8:24).

And he shall slay the lamb in the place where he shall kill the sin offering and the burnt offering, in the holy place: for as the sin offering is the priest's, so is the trespass offering: it is most holy:

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.