The word for ‘dog’ in Hebrew is ‘kelev,’ which can also mean ‘close to the heart.’ The same letters of this word are used for the name, Caleb.
Where do find the info that ancient Jews hated dogs? They are mentioned in the books of Isaiah and Job being used for hunting purposes.
“14 “Blessed are those who wash their robes, that they may have the right to the tree of life and may go through the gates into the city. 15 Outside are the dogs, those who practice magic arts, the sexually immoral, the murderers, the idolaters and everyone who loves and practices falsehood.” - Rev 22
“Deliver me from the sword,
my precious life from the power of the dogs.” - Psalms 22
“6 “Do not give dogs what is sacred; do not throw your pearls to pigs. If you do, they may trample them under their feet, and turn and tear you to pieces.” - Matt 7
“2 Watch out for those dogs, those evildoers, those mutilators of the flesh.” - Phil 2