This was the "law" at the time. We do not live under the "law" yet even
Paul said we are not above it. At very least we ought recognize the
validity of what God said regarding good and bad food we put in our bodies.
Here you are. Enjoy reading.

Leviticus 11

Laws about Animals for Food

The LORD spoke again to Moses and to Aaron, saying to them, "Speak to the
sons of Israel, saying, "These are the creatures which you may eat from all
the animals that are on the earth. "Whatever divides a hoof, thus making
split hoofs, and chews the cud, among the animals, that you may eat.
"Nevertheless, you are not to eat of these, among those which chew the cud,
or among those which divide the hoof: the camel, for though it chews cud,
it does not divide the hoof, it is unclean to you. "Likewise, the shaphan,
for though it chews cud, it does not divide the hoof, it is unclean to you;
the rabbit also, for though it chews cud, it does not divide the hoof, it
is unclean to you; and the pig, for though it divides the hoof, thus making
a split hoof, it does not chew cud, it is unclean to you. "You shall not
eat of their flesh nor touch their carcasses; they are unclean to you.
"These you may eat, whatever is in the water: all that have fins and
scales, those in the water, in the seas or in the rivers, you may eat. "But
whatever is in the seas and in the rivers that does not have fins and
scales among all the teeming life of the water, and among all the living
creatures that are in the water, they are detestable things to you, and
they shall be abhorrent to you; you may not eat of their flesh, and their
carcasses you shall detest. "Whatever in the water does not have fins and
scales is abhorrent to you. Avoid the Unclean "These, moreover, you shall
detest among the birds; they are abhorrent, not to be eaten: the eagle and
the vulture and the buzzard, and the kite and the falcon in its kind, every
raven in its kind, and the ostrich and the owl and the sea gull and the
hawk in its kind, and the little owl and the cormorant and the great owl,
and the white owl and the pelican and the carrion vulture, and the stork,
the heron in its kinds, and the hoopoe, and the bat. "All the winged
insects that walk on all fours are detestable to you. "Yet these you may
eat among all the winged insects which walk on all fours: those which have
above their feet jointed legs with which to jump on the earth. "These of
them you may eat: the locust in its kinds, and the devastating locust in
its kinds, and the cricket in its kinds, and the grasshopper in its kinds.
"But all other winged insects which are four-footed are detestable to you.
"By these, moreover, you will be made unclean: whoever touches their
carcasses becomes unclean until evening, and whoever picks up any of their
carcasses shall wash his clothes and be unclean until evening. "Concerning
all the animals which divide the hoof but do not make a split hoof, or
which do not chew cud, they are unclean to you: whoever touches them
becomes unclean. "Also whatever walks on its paws, among all the creatures
that walk on all fours, are unclean to you; whoever touches their carcasses
becomes unclean until evening, and the one who picks up their carcasses
shall wash his clothes and be unclean until evening; they are unclean to
you. "Now these are to you the unclean among the swarming things which
swarm on the earth: the mole, and the mouse, and the great lizard in its
kinds, and the gecko, and the crocodile, and the lizard, and the sand
reptile, and the chameleon. "These are to you the unclean among all the
swarming things; whoever touches them when they are dead becomes unclean
until evening. "Also anything on which one of them may fall when they are
dead becomes unclean, including any wooden article, or clothing, or a skin,
or a sack -- any article of which use is made -- it shall be put in the
water and be unclean until evening, then it becomes clean. "As for any
earthenware vessel into which one of them may fall, whatever is in it
becomes unclean and you shall break the vessel. "Any of the food which may
be eaten, on which water comes, shall become unclean, and any liquid which
may be drunk in every vessel shall become unclean. "Everything, moreover,
on which part of their carcass may fall becomes unclean; an oven or a stove
shall be smashed; they are unclean and shall continue as unclean to you.
"Nevertheless a spring or a cistern collecting water shall be clean, though
the one who touches their carcass shall be unclean. "If a part of their
carcass falls on any seed for sowing which is to be sown, it is clean.
"Though if water is put on the seed and a part of their carcass falls on
it, it is unclean to you. "Also if one of the animals dies which you have
for food, the one who touches its carcass becomes unclean until evening.
"He too, who eats some of its carcass shall wash his clothes and be unclean
until evening, and the one who picks up its carcass shall wash his clothes
and be unclean until evening. "Now every swarming thing that swarms on the
earth is detestable, not to be eaten. "Whatever crawls on its belly, and
whatever walks on all fours, whatever has many feet, in respect to every
swarming thing that swarms on the earth, you shall not eat them, for they
are detestable. "Do not render yourselves detestable through any of the
swarming things that swarm; and you shall not make yourselves unclean with
them so that you become unclean. "For I am the LORD your God. Consecrate
yourselves therefore, and be holy, for I am holy. And you shall not make
yourselves unclean with any of the swarming things that swarm on the earth.
"For I am the LORD who brought you up from the land of Egypt to be your
God; thus you shall be holy, for I am holy.'" This is the law regarding the
animal and the bird, and every living thing that moves in the waters and
everything that swarms on the earth, to make a distinction between the
unclean and the clean, and between the edible creature and the creature
which is not to be eaten.