'Body's' in the Bible

"When a man shall have a rising in his body's skin, or a scab, or a bright spot, and it becomes in the skin of his body the plague of leprosy, then he shall be brought to Aaron the priest, or to one of his sons, the priests:

and the priest shall examine the plague in the skin of the body: and if the hair in the plague has turned white, and the appearance of the plague is deeper than the body's skin, it is the plague of leprosy; and the priest shall examine him, and pronounce him unclean.

Now I rejoice in my sufferings for your sake, and fill up on my part that which is lacking of the afflictions of Christ in my flesh for his body's sake, which is the assembly;