Years ago I memorized John 1:1-5. Recently I spent three hours in a dental chair on two different occasions.
I’ve never used gas for whatever it does, but only numbing, and on one occasion had front teeth filled without anything. I dared the dentist to hit a nerve! Not really. He didn’t hit a nerve, but I thought he charged more for not numbing me up.
Reciting John 1:1-5, and other scriptures, over and over as the dentist worked all those hours helped me relax.