Deep is the moral responsibility incurred by such repression. For man has always, by the very state of the case, within him and around him, evidence for a personal righteous Power "with Whom he has to do." [Sidenote: Ver. 19.] =Because that which is known of God is manifest in them; for God manifested= (or rather, perhaps, in our idiom, =has manifested=) =it to them.= "_That which is known_"; that is, practically, "_that which is knowable, that which may be known_." There is that about the Eternal which indeed neither is nor can be known, with the knowledge of mental comprehension. "Who can find out the Almighty unto perfection?" All thoughtful Christians are in this respect agnostics that they gaze on the bright Ocean of Deity, and know that they do not know it in its fathomless but radiant depths, nor can explore its expanse which has no shore. They rest before absolute mystery with a repose as simple (if possible more simple) as that with which they contemplate the most familiar and intelligible event. But this is not not to know Him. It leaves man quite as free to be sure that He is, to be as certain that He is Personal, and is Holy, as man is certain of his own consciousness, and conscience. That there is Personality behind phenomena, and that this great Personality is righteous, St Paul here affirms to be "_manifest_," disclosed, visible, "_in men_." It is a fact present, however partially apprehended, in human consciousness. And more, this consciousness is itself part of the fact; indeed it is that part without which all others would be as nothing. To man without conscience--really, naturally, innocently without conscience--and without ideas of causation, the whole majesty of the Universe might be unfolded with a fulness beyond all our present experience; but it would say absolutely nothing of either Personality or Judgment. It is by the world within that we are able in the least degree to apprehend the world without. But having, naturally and inalienably, the world of personality and of conscience within us, we are beings to whom God can manifest, and has manifested, the knowable about Himself, in His universe.