The rock-hewn church of Dayn Aboo Hannes, "the convent of Father John," in Egypt, near Antinoe, has its walls painted with subjects from the New Testament; the church is thought to date back to the time of Constantine.
The passion for associating grottoes with sacred themes is shown in the location of the site of the Nativity at Bethlehem. There is nothing in the Gospel to lead us to suppose that the event took place in a cave, though it is not improbable that it did so. The scene of the Annunciation was also a rock-hewn cave, now occupied by a half- underground church, out of which flows the Virgin's Fountain.
In Gethsemane, "the chapel of the Tomb of the Virgin, over the traditional spot where the Mother of our Lord was buried by the Apostles, is mostly underground. Three flights of steps lead down to the space in front of it, so that nothing is seen above ground but the porch. But even after you have gone down the three flights of steps you are only at the entrance to the church, amidst marble pillars, flying buttresses, and pointed arches. Forty-seven additional marble steps, descending in a broad flight nineteen feet wide, lead down a further depth of thirty-five feet, and here you are surrounded by monkish sites and sacred spots. The whole place is, in fact, two distinct natural caves, enlarged and turned to their present uses with infinite care. Far below the ground you find a church thirty-one yards long and nearly seven wide, lighted by many lamps, and are shown the tomb of the father and mother of the Virgin, and that of Joseph and the Virgin herself. And as if this were not enough, a long subterranean gallery leads down six steps more to a cave eighteen yards long, half as broad, and about twelve feet wide, which you are told is the Cavern of the Agony." [Footnote: Geikie (C.), "The Holy Land and the Bible," Lond. 1887, ii.p.8.]
Stanley says: [Footnote: "Sinai and Palestine," Lond. 1856, p.150.] "The moment that the religion of Palestine fell into the hands of Europeans, it is hardly too much to say that as far as sacred traditions are concerned, it became 'a religion of caves,' of those very caves which in earlier times had been unhallowed by any religious influence whatever. Wherever a sacred association had to be fixed, a cave was immediately selected or found as its home. First in antiquity is the grotto of Bethlehem, already in the second century regarded by popular belief as the scene of the Nativity. Next comes the grotto on Mount Olivet, selected as the scene of our Lord's last conversation before the Ascension. These two caves, Eusebius emphatically asserts, were the first seats of the worship established by the Empress Helena, to which was shortly afterwards added a third--the sacred cave of the Sepulchre. To these were rapidly added the cave of the Invention of the Cross, the cave of the Annunciation at Nazareth, the cave of the Agony at Gethsemane, the cave of the Baptism in the Wilderness of S. John, the cave of the Shepherds of Bethlehem. And then again, partly perhaps the cause, partly the effect of the consecration of grottoes, began the caves of the hermits. There were the cave of S. Pelagia on Mount Olivet, the caves of S. Jerome, S. Paula, and S. Eustochium at Bethlehem, the cave of S. Saba in the ravine of Kedron, the remarkable cells hewn or found in the precipices of the Quarrantania or Mount of the Temptation above Jericho. In some few instances this selection of grottoes would coincide with the events thus intended to be perpetuated, as for example, the hiding-place of the prophets on Carmel, and the sepulchres of the patriarchs and of Our Lord. But in most instances the choice is made without the sanction, in some instances in defiance of, the sacred narrative."