'Fours' in the Bible

“All winged insects that walk on all fours are to be detestable to you.

But you may eat these kinds of all the winged insects that walk on all fours: those that have jointed legs above their feet for hopping on the ground.

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,

Do not eat any of the creatures that swarm on the earth, anything that moves on its belly or walks on all fours or on many feet, for they are detestable.