'Whereby' in the Bible

'Or when he cometh against uncleanness of man, even any of his uncleanness whereby he is unclean, and it hath been hidden from him, and he hath known, and hath been guilty:

Or whosoever toucheth any creeping thing, whereby he may be made unclean, or a man of whom he may take uncleanness, whatsoever uncleanness he hath;