Leviticus 14:11
And the priest that maketh him clean shall present the man that is to be made clean, and those things, before the LORD, at the door of the tabernacle of the congregation: And the priest that maketh him clean shall present the man that is to be made clean, and those things, before the LORD, at the door of the tabernacle of the congregation:
The law requires the priest who pronounces a person clean to present that person together with the required offerings before the Lord at the entrance of the tabernacle of the congregation. The cleansed leper was to be brought by the priest with the prescribed offerings and set with those things before the Lord at the tabernacle door. The priest was to examine him and publicly declare and certify that the cure was complete and he was free from disease. That verdict restored him from separation to his family and friends and to safe return to community and to Israel's congregation, whereas the priest's adverse verdict could sentence a person to isolation from family and society.
Jesus directed the leper He had healed to follow this Mosaic requirement. His healing and instruction in so doing agreed with, respected and upheld the law of Moses and the Jewish code, including its requirement for offerings, rather than opposing it. Obedience to this law, through the healed man's joyful presentation and offering and through the priests' own examination and certification of the cure, gave the priests and the people public testimony and evidence of the healing. That testimony witnessed to Christ's divine power to heal and to His respect for the law, and could help convince His opponents if they were willing to be persuaded. The ceremonial law to which this presentation belongs remained in force until Christ's death, when type met antitype.