'Unclean to You' in the Bible

Only, this ye do not eat -- of those bringing up the cud, and of those dividing the hoof -- the camel, though it is bringing up the cud, yet the hoof not dividing -- it is unclean to you;

these are the unclean to you among all which are teeming; any one who is coming against them in their death is unclean till the evening.