And we think that one cannot state that the essence of God is imparted as something whole to the three divine persons, or that the persons exist in that essence like parts in a whole that they share. For since God’s essence is infinite, and utterly incapable of being parted, it cannot be predicated of the divine persons as a whole is of its parts.
Therefore, as it cannot be explained by human reason, the mode of this mystery should be adored in humble faith, rather than be defined by risky statements.
Disputation 7.13 & 14 in Synopsis of a Purer Theology, 71.