“To those whom he devotes to condemnation, the gate of life…

“To those whom he devotes to condemnation, the gate of life is closed by a just and irreprehensible, but incomprehensible, judgment. How exceedingly presumptuous it is only to inquire into the causes of the Divine will; which is in fact, and is justly entitled to be, the cause of everything that exists.” This quote from the writings of John Calvin explains which concept?