A loving God would never…

If you still insist that a loving God would never send anyone to hell, then you must settle in your mind that desperately evil acts will forever remain unpunished.

Greg Koukl, from The Story of Reality, kindle location 2514

God’s love is not a thing in itself…

God’s love is not a thing in itself, so to speak, but is tied, like all of his attributes, to his goodness, the very goodness we are inclined to question when evil runs rampant. “Why doesn’t God do something?” we wonder. Yet we cry foul when we learn God will do something decisive about evil and we are the evildoers.

Greg Koukl, from The Story of Reality, kindle location 1469

The magnitude of the punishment…

The magnitude of the punishment matches the magnitude of the sin. Now a sin that is against God is infinite; the higher the person against whom it is committed, the graver the sin—it is more criminal to strike a head of state than a private citizen—and God is of infinite greatness. Therefore an infinite punishment is deserved for a sin committed against Him.

Thomas Aquinas, from Summa Theologica, Ia2ae. 87, 4