Let reason count the stars, weigh the mounta1ns, fathom the depths — the employment becomes her, and the success is glorious. But when the question is, "How shall man be just with God?" reason must be silent, revelation must speak; and he who will not hear it assimilates himself to the first deist, Cain; he may not kill a brother, he certainly destroys himself.
Who ever heard of a devout deist? Who ever heard of one who was willing to spend his life in missionary labor for the good of others? It is not according to the constitution of the mind that such a system should awaken the affections. And what is true of this system is true of every false system. All such systems leave the heart cold, and, accordingly, exert very little genuine, transforming power over the life.
There is probably no argument by which the case for theism, or for, deism, or for pantheism in either its pancosmic or acosmic form, can be convincingly proved.
Some will say Thomas Jefferson was a deist, not an atheist. Atheism, however, simply involves having no theism, and deism — belief that a celestial Clockmaker wound up the universe and set it ticking — is too watery a theism to count. Any religion worthy of the name explains, enjoins and consoles; undemanding deism merely explains, and does this minimally.