73. And therefore there is one opinion, which destroys all the schemes of the heretics, that we believe in the Trinity of one power, majesty and virtue; and therefore let us not separate the Father from what the Son has done, nor let us separate the Son from what the Father has commanded. For in this way, we will not introduce two gods, one of the Old Testament and another of the New Testament, but through the unity of power, both the Son is understood in the Father, and the Father is understood in the Son; and the Son is enthroned in the Father, and the Father is revealed in the Son. For the Father also forgives sin: We have already said that He has forgiven the Son.
74. Take heed that the Father also sends. Forgive, he says, our debts, as we also forgive our debtors (Matt. 6:12). Indeed, the Son says this in our person to the Father. And he does not say this as if he himself cannot forgive, but he says this so that you may understand the unity of power.
75. Finally, if you seek authority in the Son: 'Now you are clean because of the word that I have spoken to you', he says (John 15:3). He dismisses with a word, he dismisses with a command, but he dismisses with reason, saying: 'Go, and from now on do not sin anymore' (John 5:14). You have authority, because he has given the old; you have judgment, because he has prescribed the future.