Well, I know of no scripture that says this. But there are a few animals in the heavenlies in scripture: eagles, horses, Ezekiel’s whatever’s, etc.
Some animals are beasts. We’ve had 5 purebred collies - we live in the forest and they are home-bodies and generally don’t run away.
Collie #2 was evil. From 6 weeks old would bite your hand as you tried to feed him, baring teeth angrily, growling. Rabidly (almost) would attack anyone who tried to show him affection. Incorrigible.
We were not upset when a pack of feral dogs attacked him in woods near our house and killed him. Led to Animal officers finding the pack and shooting them all as they had been terrorizing our area for a month or so.
Generally humans are the only ones who torture and are evil. This dog was the exception.
I can believe that some animals have neurological defects that make them insane, as do human beings.
Odds are your dog was sick.
Did you ever have a vet *fully* test him for such things as hypothyroidism or tick borne diseases?
Those are just two of the many physical maladies which cause aggressive behavior in dogs.
And forests are full of ticks.
Enjoy your day.