'Swimming' in the Bible
These you may have for food of all things living in the water: anything living in the water, in the seas or rivers, which has special parts for swimming and skin formed of thin plates, may be used for food.
Anything in the water which has no special parts for swimming and no thin plates on its skin is disgusting to you.
And of the things living in the waters, you may take all those who have wings for swimming with and skins formed of thin plates.
But any which have no skin-plates or wings for swimming, you may not take; they are unclean for you.
Over here is the deep, wide sea, which teems with innumerable swimming creatures, living things both small and large.
And if he puts out his hands, like a man stretching out his hands in swimming, the Lord will make low his pride, however expert his designs.
Again, after his measuring a thousand, it became a river which it was not possible to go through: for the waters had become deep enough for swimming, a river it was not possible to go through.