Numbers 12:1, 4, 9-10

Then Miriam and Aaron spoke against Moses because of the Ethiopian woman whom he had married; for he had married an Ethiopian woman.

Suddenly the LORD said to Moses, Aaron, and Miriam, “Come out, you three, to the tabernacle of meeting!” So the three came out.

So the anger of the LORD was aroused against them, and He departed. And when the cloud departed from above the tabernacle, suddenly Miriam became leprous, as white as snow. Then Aaron turned toward Miriam, and there she was, a leper.