من انكر الروح القدس انكر الاب والابن
يقول القديس امبروسيوس
من ينكر الروح القدس ينكر الاب والابن ايضاً لان الروح هو روح الله وهو نفسه روح المسيح
Reference
Ambrose Milan. (1997). Three books of St. Ambrose on the Holy Spirit H. DeRomstein, E. DeRomstein & H. T. F. Dacworth, trans.). In the Fathers of Nicaea and the post-Nicaea Series II volume. X (100)
who has denied the Spirit has denied also the Father and the Son, since the same is the Spirit of God Who is the Spirit of Christ.