The Holy Spirit has also recieved all that the Father has and consequently He proceeds fromm Himself. Oh, the insanity.
The Holy Spirit has what he has from the Father and the Son.
He is the Spirit “of the Father” and “of Christ”,as Paul said.
“For He, as as been said, gives to the Spirit, and whatever the Spirit hath, He hath from the Word.” Athanasius, Against the Arians, III:24 (A.D. 362).
"Even if the Holy Spirit is third in diginity and order, why need he be third also in nature? For that he is second to the Son, having his being from him and receiving from him and announcing to us and being completely dependent on him, pious tradition recounts; Basil, Against Eunomius, 3
“The Spirit is God, from the Father and the Son.” Epiphanius, The Man Well-Anchored, 9 (A.D. 374).
“Since the Holy Spirit when he is in us effects our being conformed to God, and He actually proceeds from Father and Son, it is abundantly clear that He is of the divine essence, in it in essence and proceeding from it.” Cyril of Alexandria, Treasury of the Holy Trinity, Thesis 34 (A.D. 425).
“Believe most firmly, and never doubt, that the same Holy Spirit, the One Spirit of the Father and the Son, proceeds from the Father and the Son. That He proceeds also from the Son is supported by the teaching both of Prophets and Apostles.” Fulgence of Ruspe (North Africa), Rule of Faith, 11 (A.D. 447).
“…the Holy Living Spirit, the Holy Living Paraclete, Who proceeds from the Father and the Son.” Council of Seleucia (410) (Lamy, “Concilium Seleucia”, Louvain, 1868).