Numbers 12:9-15 (New King James Version)

⁹ So the anger of the LORD was aroused against them, and He departed. ¹⁰ 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. ¹¹ So Aaron said to Moses, “Oh, my lord! Please do not lay this sin on us, in which we have done foolishly and in which we have sinned. ¹² Please do not let her be as one dead, whose flesh is half consumed when he comes out of his mother’s womb!”
¹³ So Moses cried out to the LORD, saying, “Please heal her, O God, I pray!”
¹⁴ Then the LORD said to Moses, “If her father had but spit in her face, would she not be shamed seven days? Let her be shut out of the camp seven days, and afterward she may be received again.” ¹⁵ So Miriam was shut out of the camp seven days, and the people did not journey till Miriam was brought in again.