(Ibid. 16) "When they have a matter (to be resolved), he (the one who 'has the matter') comes to me": ("a matter") as to uncleanliness or cleanliness. "and I judge between a man": This is a judgment where there is no compromise. "and his neighbor": this is a judgment where there is compromise, where they take leave of each other as "neighbors."
What Is Permitted and What Is Forbidden
Mekhilta Tractate Amalek 4:4