The Word, then, the Christ, is the cause both of our ancient beginning, for lie was in God, and of our well-being. And now this same Word has appeared as man. He alone is both God and man, and the source of all our good things
TertullianLet the emperor make war on heaven; let him lead heaven captive in his triumph; let him put guards on heaven; let him impose taxes on heaven! He cannot. . . . He gets his sceptre where he first got his humanity; his power where he got the breath of life.
Tertullian[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.
Tertullian