decalogist
/ˌdɛkəˈlɒɡɪst/Definitions
1. noun
A person who studies or interprets the Ten Commandments.
“The decalogist pointed out the historical context of the Decalogue in the Bible.”
2. noun
A specialist in the study of the Decalogue, especially in its historical and cultural context.
“The decalogist’s book on the significance of the Ten Commandments was well-received by scholars.”