Knowing Divine Things

Sensum autem tuum quis scivit, nisi tu dederis ei sapientiam, et miseris Spiritum sanctum tuum de altissimis? Manifestum est enim quod non nisi per sancti Spiritus gratiam divinarum rerum possumus percipere scientiam, quia nemo scit quae sunt in homine, nisi spiritus hominis qui est in homine. Ita et quae Dei sunt nemo novit nisi Spiritus Dei. Spiritus enim omnia scrutatir, etiam profunda Dei; ipse corda sanctorum illuminat, et de invisibilis ac coelestius instruit, ita ut intellectum divinae majestatis pro modulo suo percipiant, et ejus bonitatem semper amare necessitantur. Rabanus Maurus, Commentariorum In Librum Sapientiae, Liber II, Caput VI Source: Migne PL 109.715c

But who knows your mind, unless you have given wisdom to him, and you send your Holy Spirit from the heights? 1 It is manifest that we cannot grasp the knowledge of Divine things unless by the grace of the Holy Spirit, because 'no one knows what is in a man unless the spirit of man which is in a man, and thus no one knows what is of God unless the spirit of God, because the spirit of God scrutinises everything, even the depths of God.' 2 He illuminates the hearts of the holy, and instructs them about things unseen and heavenly, so that they may perceive in His own manner the understanding of the Divine majesty, and be led to the love of His benevolence. Rabanus Maurus, Commentary On the Book of Wisdom, Book 2, Chapter 6 1 Wisd 9.17 2 1 Cor 2.11