This congruity of the miracle with divine truth and grace is the answer to Matthew Arnold's taunt about turning a pen into a pen-wiper or Huxley's about a centaur trotting down Regent Street.
On account of their connexion and congruity with the divine revelation.
This ethical value is perceived by reason or understanding (which, unlike Kant, he does not distinguish), which intuitively recognizes fitness or congruity between actions, agents and total circumstances.
Between Christianity and Jewish legalism, it maintained the inwardness of faith to be the sole way to eternal life, in contrast to the outwardness of works; returning to Augustine, and expressing his spirit in a new formula, to resist the Neo-Pelagianism that had gradually developed itself within the apparent Augustinianism of the church, it maintained the total corruption of human nature, as contrasted with that " congruity " by which, according to the schoolmen, divine grace was to be earned; renewing the fervent humility of St Paul, it enforced the universal and absolute imperativeness of all Christian duties, and the inevitable unworthiness of all Christian obedience, in opposition to the theory that " condign " merit might be gained by " supererogatory " conformity to evangelical " counsels."
Kepler's ineradicable belief in the existence of some such congruity was derived from the Pythagorean idea of an underlying harmony in nature; but his arduous efforts for its realization took a devious and fantastic course which seemed to give little promise of their surprising ultimate success.