All the three persons are one God; God is the Creator; and therefore all the external works and acts of the one God must be common to the three persons. Hence, when the work of creation is ascribed to the Father, neither the Son nor the Holy Spirit are excluded; but because as the Father is the fountain of the Deity, so he is the fountain of divine works. The Father created from himself by the Son and the Spirit; the Son from the Father by the Spirit; and the Spirit from the Father and the Son; the manner or order of their working being according to the order of their subsisting. The matter may be considered in this way: All the three persons being one God, possessed of the same infinite perfections; the Father, the first in subsistence, willed the work of creation to be done by his authority: "He spoke, and it was done; he commanded, and it stood fast."-In respect of immediate operation, it peculiarly belonged to the Son. For, "the Father created all things by Jesus Christ," Eph. 3:9. And we are told, that "all things were made through him," John 1:3. This work in regard of settlement and ornament, particularly belongs to the Holy Ghost. So it is said, Gen 1:2, "and the Spirit of God was hovering over the face of the waters," to embellish and adorn the world, after the matter of it was formed. This is why it is also said, Job 26:13 "By His Spirit He adorned the heavens."
Boston follows the principle "opera ad extra trinitatis indivisa sunt" --the works of the Trinity ad extra or outside the Godhead are indivisible.