What does Leviticus 13:51 mean?

and he shall look on the plague on the seventh day: if the plague be spread in the garment, either in the warp, or in the woof, or in the skin, whatever service skin is used for; the plague is a fretting leprosy; it is unclean.

And he shall look on the plague on the seventh day: if the plague be spread in the garment, either in the warp, or in the woof, or in a skin, or in any work that is made of skin; the plague is a fretting leprosy; it is unclean.

and he shall look on the plague on the seventh day: if the plague be spread in the garment, either in the warp, or in the woof, or in the skin, whatever service skin is used for; the plague is a fretting leprosy; it is unclean.

And he is to see the mark on the seventh day; if the mark is increased in the clothing, or in the threads of the material, or in the leather, whatever the leather is used for, it is the disease biting into it: it is unclean.

and he hath seen the plague on the seventh day, and the plague hath spread in the garment, or in the warp, or in the woof, or in the skin, of all that is made of skin for work; the plague <FI>is<Fi> a fretting leprosy, it <FI>is<Fi> unclean.

And on the seventh day when he looketh on it again, if he find that it is grown, it is a fixed leprosy. He shall judge the garment unclean, and every thing wherein it shall be found.

And he shall see the sore on the seventh day: if the sore have spread in the garment, either in the warp or in the woof, or in a skin, in any work that may be made of skin, the sore is a corroding leprosy: it is unclean.