An Historical Summary of Angelic Hierarchies from Part VII: The “Seven” Thrones in In Operibus Sigillo Dei Aemeth by David Richard Jones.
“It seems probable that this earlier genre of angelical classification is the source of Paul’s reference in Colossians.
For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him:
Colossians 1:16 (KJV)
It is from this reference by St. Paul that all subsequent Christian theological discussions on the subject base their authority.” [via]
St. Paul preaching on the Areopagus