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 of Laodicea (363-364), for example, mandated only that Sabbath Eucharists must be observed in the same manner as those on the first day. Neander has suggested that Sabbath Eucharists in many places were kept "as a feast in commemoration of the Creation". The issues about Hebrew practices that continued into the 2nd century tended to relate mostly to the Sabbath. Justin Martyr, who attended worship on the first day, wrote about the cessation of Hebrew Sabbath observance and stated that the Sabbath was enjoined as a temporary sign to Israel to teach it of human sinfulness (), no longer needed