Mayhew insisted upon the strict unity of God, "who is without rival or competitor." "The dominion and sovereignty of the universe is necessarily one and in one, the only living and true God, who delegates such measures of power and authority to other beings as seemeth good in his sight." He declared that the not preserving of such unity and supremacy of God on the part of Christians "has long been just matter of reproach to them"; and he said the authority of Christ is always "exercised in subordination to God's will."[17] His position was that "the faith of Christians does not terminate in Christ as the ultimate object of it, but it is extended through him to the one God."[18] The very idea of a mediator implies subordination as essential to it.[19] His biographer says he did not accept the notion of vicarious suffering, and, that he was an Arian in his views of the nature of Christ. "He was the first clergyman in New England who expressly and openly opposed the scholastic doctrine of the Trinity. Several others declined pressing the Athanasian Creed, and believed strictly in the unity of God. They also probably found it difficult to explain their views on the subject, and the great danger of losing their good name served to prevent their speaking out. But Dr. Mayhew did not conceal or disguise his sentiments on this point any more than on others, such as the peculiar tenets of Calvinism. He explicitly and boldly declared the doctrine irrational, unscriptural, and directly contradictory."[20] He taught the strict unity of God as early as 1753, "in the most unequivocal and plain manner, in his sermons of that year."[21] What most excited comment and objection was that, in a foot-note to the volume of his sermons published in 1755, Mayhew said that a Catholic Council had elevated the Virgin Mary to the position of a fourth person in the Godhead, and added, by way of comment: "Neither Papists nor Protestants should imagine that they will be understood by others if they do not understand themselves. Nor should they think that nonsense and contradictions can ever be too sacred to be ridiculous." The ridicule here was not directed against the doctrine of the Trinity, as has been maintained, but the foolish defences of it made by men who accepted its "mysteries" as too wonderful for reason to deal with in a serious manner. This boldness of comment on the part of Mayhew was in harmony with his strong disapproval of creed-making in all its forms. He condemned creeds because they set up "human tests of orthodoxy instead of the infallible word of God, and make other terms of Christian communion than those explicitly pointed out by the Gospel."[22]