Albert Barnes Commentary Leviticus 14:1

"And Jehovah spake unto Moses, saying," — Leviticus 14:1 (ASV)

The leper was excluded not only from the sanctuary but also from the camp. The ceremony of restoration he had to undergo was therefore twofold. The first part, performed outside the camp, entitled him to come within and to mix with his brethren (Leviticus 14:3–9). The second part, performed in the court of the tabernacle and separated from the first by an interval of seven days, restored him to all the privileges of the covenant with Yahweh (Leviticus 14:10–32).