12 Miriam and Aaron spoke against Moses because of the Cushite woman whom he had married, for he had married a Cushite woman. 2 And they said, “Has the Lord indeed spoken only through Moses? oHas he not spoken through us also?” And pthe Lord heard it. 3 Now the man Moses was very meek, more than all people who were on the face of the earth. 4 And suddenly the Lord said to Moses and to Aaron and Miriam, “Come out, you three, to the tent of meeting.” And the three of them came out. 5 And qthe Lord came down in a pillar of cloud and stood at the entrance of the tent and called Aaron and Miriam, and they both came forward. 6 And he said, “Hear my words: If there is a prophet among you, I the Lord make myself known to him rin a vision; I speak with him sin a dream. 7 Not so with tmy servant Moses. uHe is faithful in all my house. 8 With him I speak vmouth to mouth, clearly, and not in wriddles, and he beholds xthe form of the Lord. Why then were you not afraid to speak against my servant Moses?” 9 And the anger of the Lord was kindled against them, and he departed.
Leprosy was a term for several skin diseases; see Leviticus 13