Raised in ignorance and lacking a sound mind, they fear the knowledge that they ought to acquire, even through very great labors. They ought to attain it with the utmost zeal.
Thus the spiritual man will delight in the words of our Savior and will rightly prefer to cry out: "How sweet are Thy words to my palate, sweeter than honey to my mouth" (Ps 119:103).
But the soulish Jew irrationally regards the spiritual mystery as foolishness. When the Savior's words call him to ascend to the understanding proper to man, he always falls back into his customary madness (1 Cor 2:14; 1 Cor 1:18-23). He calls evil good and good evil, according to the word of the Prophet (Is 5:20).
In this too he proves to be a patriot and imitator of his ancestors' ignorance. They received manna from God and shared in the blessing from above. Yet they were drawn to their customary baseness, demanded the foul herbs of Egypt, onions and garlic, and desired pots of meat.
These, likewise, are called to receive the life-giving grace of the Spirit and the True Bread. They are taught to eat Him who came from God and the Father. Yet they turn aside to their customary error, "lovers of pleasure rather than lovers of God" (2 Tim 3:4).
As their fathers blamed the nourishment of manna, daring to say, "Our soul is dried up" because of this manna (Num 11:6), so these again reject the True Bread. They are not ashamed to say, "This word is hard."
Therefore we must be wise hearers of the divine mysteries. We must be skilled money-changers, able to know the genuine coin and the counterfeit. We must not untimely set insoluble questions against what has been received by faith. Nor must we squander faith upon what calls for inquiry, when such faith may at times be harmful.
Rather, we must render to everything that is communicated its due and walk as though by a straight path, refusing to turn aside in either direction. He who walks in the rectitude of faith in Christ must travel by the royal road.