The Father, the Son, and the Holy Spirit are One in counsel.
20. For the Spirit Himself is Power, as you read: |The Spirit of Counsel and of Power (or might).| And as the Son is the Angel of great counsel, so, too, is the Holy Spirit the Spirit of Counsel, that you may know that the Counsel of the Father, the Son, and the Holy Spirit is One. Counsel, not concerning any doubtful matters, but concerning those foreknown and determined.
21. But that the Spirit is the Arbiter of the Divine Counsel, you may know even from this. For when above we showed that the Holy Spirit was the Lord of baptism, and read that baptism is the counsel of God, as you read, |But the Pharisees despised the counsel of God, not being baptized of Him,| it is quite clear that as there can be no baptism without the Spirit, so, too, the counsel of God is not without the Spirit.
22. And that we may know more completely that the Spirit is Power, we ought to know that He was promised when the Lord said: |I will pour out of My Spirit upon all flesh.| He, then, Who was promised to us is Himself Power, as in the Gospel the same Son of God declared when He said: |And I will send the promise of the Father upon you, but do you remain in the city until ye be endued with power from on high.|
23. And the Evangelist so far shows that the Spirit is Power, that St. Luke relates that He came down with great power, when he says: |And suddenly there was a sound from heaven, as though the Spirit were borne with great power.|
24. But, again, that you may not suppose that this is to be referred to bodily things and perceptible to the senses, learn that the Spirit so descended as Christ is to descend, as you find: |They shall see the Son of Man coming in the clouds with great power and majesty.|
25. For how should not the power and might be one, when the work is one, the judgment one, the temple one, the life-giving one, the sanctification one, and the kingdom also of the Father, Son, and Holy Spirit one?