In Brief CCC 263
© Libreria Editrice Vaticana Source: vatican.va
The mission of the Holy Spirit, sent by the Father in the name of the Son (Jn 14:26) and by the Son "from the Father" (Jn 15:26), reveals that, with them, the Spirit is one and the same God. "With the Father and the Son he is worshipped and glorified" (Nicene Creed).
Read the full chapter 1. I Believe in God the Father ¶198–421