Arianism was vexing the church in general in England in that age.[52] Many of the churches, especially those to which Watts stood related, indicated a close proclivity to Arian sentiment. The peculiar spirit of the times had created this degeneracy of sentiment; there was little of what we are now accustomed to denominate practical Christianity—the activities created by Methodism were quite unknown. All over the country were Nonconformist churches (nooks of retreat), where some learned, scholarly, and philosophical minister was at the head of a class of thoughtful minds. Numbers of them seemed to have little to do but to think; the heart did not minister much to the head in many instances. The Unitarianism of our day was unknown. It thus represented very much the high Arian sentiment of reverence to Christ without the acknowledgment of His Godhead. The hymns of Watts abound in expressions of praise to Christ and to the Holy Spirit. He was called upon to vindicate that which he himself had done; he was called upon to defend that whole scheme of doctrine which accepted the Three Persons in the Divine Godhead. Perhaps the defect in all such efforts is, that the very attempt to embody some doctrines within the forms of the understanding naturally and essentially depraves them. If we say, as we often do, a God understood is no God at all—and this remark applies to mere natural religion—the same holds true of those higher doctrines of revelation which are the adumbrations of “the light which no man hath seen or can see.” There are doctrines in Theology, even as there are doctrines in Science, the demonstration of which is rather negative than positive. Chemists tell us of an element essential to our life—we breathe it every moment; it contributes to the balance of all the powers of the atmosphere; it tames the subtle, fiery-tempered oxygen, the wild and vehement hydrogen; it represses, allays, and composes, but itself has no colour no odour; it has no active properties, no chemical affections; it is one of the greatest mysteries in nature. It is invisible, and yet it proclaims its presence; the chemist cannot touch it, but he is sure of its existence. It may well fill our minds with awe that we are ever in the presence of such an agent, that before it the lamp of science is darkened, like a man with a dim light in a room in which he sees phantoms he cannot touch, and hears voices the causes of which he cannot detect, and as he holds up his lamp he is aware of a presence that disturbs him, that will not enter into his knowledge, and for which he cannot account. Only he knows that it is. Such is nitrogen. It is thus we apprehend the doctrine of the Trinity.