'Develops' in the Bible

“When a skin disease develops on a person, he is to be brought to the priest.

and a white swelling or a reddish-white spot develops where the boil was, the person must present himself to the priest.

"Now when a man or a woman has a skin rash on the head or the man develops a skin rash under his beard,

But when in the baldness of his head or his forehead there develops a skin rash that's white or reddish, it's an infectious skin disease that has spread to his bald head or forehead.