Seven days — For greater assurance; to teach ministers not to be hasty in their judgments, but diligently to search and examine all things before — hand. The plague is here put for the man that hath the plague.
Related Commentaries of Leviticus 13:4
Leviticus 13:4
4 If the bright spot be white in the skin of his flesh, and in sight be not deeper than the skin, and the hair thereof be not turned white; then the priest shall shut up him that hath the plague seven days: