built this great All by his Word. For every science to which we may attaine by our ratiocination and discourse, proceeds from the knowledge of sensible things, (for there is nothing in the intellect, but was first in the sense) but incertaine and variable, to be in continuall variation and vicissitude. So that the knowledge that comes from the light of Nature, is very weake, and full of doubts, and incertitudes, if it bee not illustrated by Divine Revelation, which makes us see all as it is in its true and reall essence, as the light of the Sunne doth all things corporall. So that the most part of heathen Philosophers, after they have alembeck’t their spirit to the perquisition of naturall causes, they finde themselves so confounded, that they are forced to avow that by the only way of ratiocination you cannot draw truth therefrom. As _Aristotle_ discourseth thereupon well at large, in the 4. of the _Metaphysicks_. _Ptolomie_ also, that we must not ground and rule our conceptions for regard of corporall things above spirituall; for they are farre distant each from other, and there is much disparity and disproportion between them. But yet lesse between intelligible above sensible; although they serve us herein as a ladder, following that which the Apostle saith, That the invisible things of God are seen by the Creation of the world, by things made, also his eternall power and divinity. We must therefore run back to this spiritual light, which holdeth the highest & soveraign place in the knowledge of the understanding; So that light is more properly of things spiritual, then corporal, and more certain and true are the invisible then the visible; for as much as God only is a true light in his essence from whence he derives into our spirit all the knowledg wherewith it can be illustrated, as the potentiall light of our eye is from the brightness of the Sun, or of something artificial, traversing the transparence of the air, the place of which eye the soul holds in spiritualty, as the divine Intelligence maketh that of the Sun, which is a representation and image thereof.