'Malignant' in the Bible

He must then examine the infection on the seventh day. If the infection has spread in the garment, or in the warp, or in the woof, or in the leather -- whatever the article into which the leather was made -- the infection is a malignant disease. It is unclean.

He must burn the garment or the warp or the woof, whether wool or linen, or any article of leather which has the infection in it. Because it is a malignant disease it must be burned up in the fire.

the priest is to come and examine it, and if the infection has spread in the house, it is a malignant disease in the house. It is unclean.

So Satan went out from the presence of the Lord, and he afflicted Job with a malignant ulcer from the sole of his feet to the top of his head.