Actually, as a jw I always thought of jws who obsessed about the use of "swear" words in the context of these scriptures.
(Matthew 23:23-26) 23 "Woe to YOU, scribes and Pharisees, hypocrites! because YOU give the tenth of the mint and the dill and the cumin, but YOU have disregarded the weightier matters of the Law, namely, justice and mercy and faithfulness. These things it was binding to do, yet not to disregard the other things. 24 Blind guides, who strain out the gnat but gulp down the camel! 25 "Woe to YOU, scribes and Pharisees, hypocrites! because YOU cleanse the outside of the cup and of the dish, but inside they are full of plunder and immoderateness. 26 Blind Pharisee, cleanse first the inside of the cup and of the dish, that the outside of it also may become clean.
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So with their lies, evil gossip, judgment statements, etc., most jws are like the Pharisees cleaning the outside but filthy inside, their personalities are corrupt. They disregard the more important thing that Jesus said would identify his followers, love....mercy, true justice, and faithfulness to his example not an organization.