"Take the story of Cain and Abel. Why were we given that story? Scientifically, you may have an explanation for it, but I'm not approaching it from the scientific point of view. I'm saying: Why do we need that? It's a sordid story, a depressing story, a dark story. Why should I believe that I'm a descendant of either Cain or Abel? Thank God there is a third son! [Genesis 4:25]"

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What brings us to perfection? An ingrained faith in God, the 'faith that makes real the things for which we hope' (Heb. 11:1), the faith whereby Abel offered to God a better sacrifice than Cain and was commended as righteous (cf. Heb 11:4). It is such faith that fills those assiduous in the search for truth with great aspiration for the exalted gifts of God, and leads them to the spiritual knowledge of created beings; and it pours into their hearts the inexhaustible treasures of the Spirit.

— Niketas Stethatos