Sometimes we endeavour to advance in virtuous attainments, and some gifts we are vouchsafed, but being kept off from some, we lie prone in things below. For there is no man who masters that degree of goodness which he desires, in that Almighty God, Who discerneth the inward parts, sets bounds to the very spiritual attainments themselves; that by reason of that which man tries to master, and is unable, he may not exalt himself in those things, in which he has the power. Whence too that great Preacher, that had been carried up into the third heaven, and penetrated the secrets of Paradise, after that revelation, was not left the power to be at rest, and without temptation. But whereas Almighty God has ‘appointed man his bounds, which he cannot pass,’ he both exalted him to know things on high, and set him down again to be subject to weak things, that he looking at the measure of his compass, whilst he endeavoured to lay hold on security, and could not, that he might not be carried out of himself in pride, might be forced in humility ever to return back within his own bounds.