As human beings, we are wired to think in generalities. To know particular things, we usually place them in broader, more general contexts. We try and see the qualities a thing shares with other things, and through a process of abstraction, we create classes and general categories. Abstraction is an integral part of human thought. So it is no surprise that when it comes to the question of the existence of God, philosophers have applied the process of abstraction.

Van Til taught that abstract reas...