When he comes to speak of the Holy Ghost, Servetus unhappily forgets what is due to the discussion of a subject that has engaged the serious thoughts of so many pious men. He would seem to have seen some portions of the catholic Christian dogma as so unreasonable that they were even open to ridicule; and this leads him to the use of improper language. The Holy Ghost, he maintains, is never spoken of save confusedly in the Scriptures, the term being applied variously now to an angel, now to the soul of man, and again to nothing more than wind or breath (Ib. f. 22, a.). The Hebrew word _Ruach_, of which spirit or wind is a translation, has indeed a still greater variety of meanings. On a subject so indefinite and undefined as the Holy Spirit, we cannot wonder that Œcolampadius in one of his letters should declare he can make nothing of what Servetus says on the matter--‘_dicit nescio quid_--he says I know not what.’ This much, however, we do make out as our author’s opinion, viz.: that the Holy Spirit is nowhere spoken of in Scripture as a distinct and independent entity, but always as a motion, an agency, an afflatus of God or the power of God,--a view in which he certainly had Melanchthon as his predecessor: ‘_Nec aliud spiritus sanctus est nisi viva Dei voluntas et agitatio._’ (‘Loci Theol.’ p. 128, ed. 1521.) Referring to the dogma of the ‘Two Natures,’ Servetus holds that this, too, is founded in error. ‘To speak of the _Nature_ of God,’ he says, ‘is absurd; for the word nature can only apply to something created, something born (from the Latin _natus_). But God is from Eternity. For my own part,’ he proceeds, ‘I never take nature to signify aught but the thing to which the term is applied--the nature of a thing is the thing itself. To use the word nature in connection with the name of God is, therefore, to speak of God himself. And so of the Son of God: that which was an idea, image, or type of the Son in the mind of God, when the Word was made flesh, became or was Christ, Reality then superseding Idea (‘De Tr. Er.’ f. 92). There was consequently no aggregate of two natures or two different things in Christ; he was one entity or person, in the usual sense of the word.’ Servetus very inconsistently, as it seems at first sight, often speaks of the man Jesus as God. But he can do so only on the same ground as Cyrus in the Bible, Augustus Cæesar, and other rulers, are called _Dii_ or _Divi_--gods. The Son of God, to Servetus, in conformity with the pantheistic idea, can only be an aspect or _Mode_ of the One God. If this be not his meaning, I know not what it is.