Leviticus 11:9-10

⁹And these are what ye shall eat of all that are in the waters: all things that have fins and scales in the waters, and in the seas, and in the brooks, these ye shall eat.

¹⁰And all things which have not fins or scales in the water, or in the seas, and in the brooks, of all which the waters produce, and of every soul living in the water, are an abomination; and they shall be abominations to you.