Another inference from these premises is, that there may be an apparent contradiction between the statements of science and revelation. Revelation may describe phenomena according to apparent truth, as when it speaks of the rising and setting of the sun, and the immobility of the earth; but science describes the same according to the actual truth, as when it gives a real motion to the earth, and only an apparent motion to the heavens. Had the language of revelation been scientifically accurate, it would have defeated the object for which the Scriptures were given; for it must have anticipated scientific discovery, and therefore have been unintelligible to those ignorant of such discoveries. Or if these had been explained by inspiration, the Bible would have become a text-book in natural science, rather than a guide to eternal life. The final conclusion from these principles is, that since science and revelation treat of the same subjects only incidentally, we ought only to expect that the facts of science, rightly understood, should not contradict the statements of revelation, correctly interpreted. Apparent discrepancies there may be; and it would not be strange, if for a time they should seem to be real; either because science has not fully and accurately disclosed the facts, or the Bible is not correctly interpreted; but if both records are from God, there can be no real contradiction between them. But, on the other hand, we have no reason to expect any remarkable coincidences, because the general subject and object of the two records are so unlike. Should such coincidences occur, however, they will render it less probable that any apparent disagreement is real. If the positions taken in these preliminary remarks be correct, it will follow, that in judging of the agreement or disagreement between revelation and science, it is important, in the first place, that we rightly understand the Bible; and, in the second place, that we carefully ascertain what are the settled and demonstrated principles of science. An examination of these points will constitute the remainder of this lecture.