Witches' Sabbath (The Great He-Goat) whose full-length portrait appears in the same series. As with the other "Black Paintings", Goya began with a black background which he painted over with lighter pigments, then with broad, heavy brushstrokes of grey, blue and brown. The darker areas were achieved by leaving the black under-paint exposed; this is most obvious in the figure of the Devil. Like the other works in the series, "Witches' Sabbath" is worked up through heavy, slashing brushstrokes. The plaster was underlaid with thick carbon black before the paint was applied in hues of white lead, Prussian blue, vermilion of mercury, and crystals of
Sabbath in Christianity Sabbath commandment, referring it to eschatological rest rather than observance of a literal day. Such writing, however, did serve to deepen the idea of Christian rest on Sunday, and its practice increased in prominence throughout the early Middle Ages. Thomas Aquinas taught that the Decalogue is an expression of natural law which binds all men, and therefore the Sabbath commandment is a moral requirement along with the other nine. Thus in the west, Sunday rest became more closely associated with a Christian application of the Sabbath, a development towards the idea of a "Christian Sabbath" rather than a Hebrew one.