As for the holy spirit, Arius believed that it was a person but that it was inferior to both the Father and the Son.
(‏ كولوسي ١ :‏ ١٥‏ )‏ أما الروح القدس فقد آمن آريوس بأنه شخص لكنه ادنى من الآب والابن كليهما .‏