Leviticus 11:23-25

²³and every teeming thing which is flying, which hath four feet — an abomination it is to you.

²⁴'And by these ye are made unclean, any one who is coming against their carcase is unclean till the evening;

²⁵and anyone who is lifting up aught of their carcase doth wash his garments, and hath been unclean till the evening: —