Mystic Aquarium researchers have spent the last three years trying to create the ideal romantic conditions for royal grammas, working out of a lab at the Marine Science Magnet High School in Groton. (theday.com)
So it appears that in Paul's thinking, gramma does not refer to the Bible or the Scriptures, but to the prescriptions and commands of the Law (see TDNT I: 765). (redeeminggod.com)