Charles Ellicott Commentary Leviticus 14:3

"and the priest shall go forth out of the camp; and the priest shall look; and, behold, if the plague of leprosy be healed in the leper," — Leviticus 14:3 (ASV)

And the priest shall go forth. — To this appointed place the priest had to go to meet and examine the restored leper, and to satisfy himself that he was thoroughly cured.