Chapter 9.
100 But perhaps some one may say, Show me that we can read expressly that all things are of the Son, or that all things are of the Spirit. But I reply, Let them also show that it is written that all things are through the Father. But since we have proved that these expressions suit either the Father or the Son or the Holy Spirit, and that no distinction of the divine power can arise from particles of this kind, there is no doubt but that all things are of Him through Whom all things are; and that all things are through Him through Whom all are; and that we must understand that all things are through Him or of Him in Whom all are. For every creature exists both of the will, and through the operation and in the power of the Trinity, as it is written: “Let Us make man after Our image and likeness;” and elsewhere: “By the word of the Lord were the heavens established, and all their power by the Spirit of His mouth.”
Source: On the Holy Spirit (New Advent)