It was the design of the Inquiry to establish the doctrine of moral necessity; and hence it was incumbent on President Edwards to reconcile this kind of necessity, and not philosophical necessity, with the free-agency of man. He contends that there is a necessary connexion between the influence of motives and volitions. This he calls moral necessity. It differs from natural necessity, says he, it differs from the necessary connexion between cause and effect; but yet, he expressly tells us, that this difference "does not lie so much _in the nature of the connexion_, as in the _terms connected_." In both cases, he maintains, the connexion is necessary and absolute. The two terms connected are different; but the kind and nature of the connexion is the same. This is the kind of necessity for which he pleads; and we can never be satisfied with his scheme, until the term shall be used in this precise and definite sense, and the doctrine it expresses shall be shown to be consistent with the true idea and feeling of liberty in the human breast. It will not, it cannot satisfy the mind, that any other kind of necessity is reconcilable with liberty; while it remains to be shown that moral necessity, as it is defined and explained in the Inquiry, is consistent with the free-agency of man. There is one sense of the term in question, says he, "which especially belongs to the controversy about acts of the will," p. 30. It is what he calls "a necessity of consequence." This would be very true, if he merely meant by a necessity of consequence, to refer to the necessary connexion between cause and effect. But this is not his meaning; for he expressly says, that "a necessity of consequence" "lies _in_, and may be explained _by_, the connexion of two or more propositions one with another." Now what has the connexion between any two or all the propositions in the universe, to do with the controversy about acts of the will? Is it not evident, that it is the connexion which subsists between effects and their producing causes, and which is supposed to subsist between motives and actions, that has to do with the controversy in question; and that the connexion which subsists between two or more propositions is entirely foreign to the subject? It may be said, that by "a necessity of consequence," Edwards referred not only to the connexion between two or more propositions, but also to the connexion between cause and effect. This is undoubtedly true; for he speaks of effects as coming to pass by this kind of necessity. But then it is to be lamented that two ideas, which are so perfectly distinct, should have been couched under the same mode of expression, and treated as if they were identically the same. Such a confounding of different ideas, has led to no little confusion and error in the reasoning of President Edwards.