[T]he Father, the Son, and the Holy Ghost [are] three ... not in condition, but in degree; not in substance, but in form; not in power, but in aspect; yet of one substance, and of one condition, and of one power, inasmuch as He is one God, from whom these degrees and forms and aspects are reckoned, under the name of the Father, and of the Son, and of the Holy Ghost.
TertullianThere are still preserved among Christians traces of that Holy Spirit that appeared in the form of a dove. They expel evil spirits, perform many cures, and foresee certain events.
TertullianExamine then, and see if He be not the dispenser of kingdoms, who is Lord at once of the world which is ruled, and of man himself who rules; if He have not ordained the changes of dynasties, with their appointed seasons, who was before all time, and made the world a body of times; if the rise and the fall of states are not the work of Him, under whose sovereignty the human race once existed without states at all.
Tertullian