Let 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.
TertullianThus the connection of the Father in the Son, and of the Son in the Paraclete, produces three coherent Persons, who are yet distinct One from Another. These three are one [thing], not one [Person], as it is said, 'I and my Father are One,' in respect of unity of substance not singularity of number.
Tertullian