He said he wouldn't suffer a word to be uttered in his disparagement: if he were the devil, it didn't signify; he would stand by him; and he'd rather she would abuse himself, as she used to, than begin on Mr. Heathcliff. 
He said he wouldn't suffer a word to be uttered against Heathcliff: if he were the devil, it didn't matter; he would stand by him. 