Gregory of Nyssa — as excerpted in the Catena Aurea on Luke 11:29-32

“(Hom. 7. Cant.) Now as she was queen of the Ethiopians, and in a far distant country, so in the beginning the Church of the Gentiles was in darkness, and far off from the knowledge of God. But when Christ the Prince of peace shone forth, the Jews being still in darkness, thither came the Gentiles, and offered to Christ the frankincense of piety, the gold of divine knowledge, and precious stones, that is, obedience to His commands.”