In the Jewish, Christian, and Islam faith systems and traditions a personal Creator, Sustainer is not only the Ground of all being (GOAB), but a committed partner in its creation and sustaining, particularly to humankind, created to its image.
Unknowable only to experience in “His, Her, Its” actions with a purpose that, being the Alpha and the Omega, is the GOAB itself.
Basically it is up to us humans to unravel the mysteries and to deepen out our love and relationship with our Creator.