Numbers 12:10-12

And the cloud removed from over the Tent; and, behold, Miriam was leprous, as white as snow: and Aaron looked upon Miriam, and, behold, she was leprous. And Aaron said unto Moses, Oh, my lord, lay not, I pray thee, sin upon us, for that we have done foolishly, and for that we have sinned. Let her not, I pray, be as one dead, of whom the flesh is half consumed when he cometh out of his mother’s womb.