by Robert Shaw
Section II.— Although in relation to the foreknowledge and decree of God, the first cause, all things come to pass immutably and infallibly, yet, by the same providence, he ordereth them to fall out according to the nature of second causes, either necessarily, freely, or contingently.
Exposition
Since all things were known to God from the beginning of the world, and come to pass according to the immutable counsel of his will, it necessarily follows that, in respect of the foreknowledge and decree of God, all things come to pass infallibly. But, by his providence, he orders them to fall out according to the nature of second causes. Every part of the material world has an immediate dependence on the will and power of God, in respect of every motion and operation, as well as in respect of continued existence; but he governs the material world by certain physical laws,—commonly called the laws of nature, and in Scripture the ordinances of Heaven,—and agreeably to these laws, so far as relates to second causes, certain effects uniformly and necessarily follow certain causes. The providence of God is also concerned about the volitions and actions of intelligent creatures; but his providential influence is not destructive of their rational liberty, for they are under no compulsion, but act freely; and all the liberty which can belong to rational creatures is that of acting according to their inclinations. Though there is no event contingent with respect to God, 'who declareth the end from the beginning, and from ancient times the things which are not yet done, saying, My counsel shall stand, and I will do all my pleasure;' yet many events are contingent or accidental with regard to us, and also with respect to second causes.
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Excerpt from The Reformed Faith: An Exposition Of The Westminster Confession Of Faith