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 who is constantly keeping sabbath", and Tertullian (early 3rd century) argued "that we still more ought to observe a sabbath from all servile work always, and not only every seventh-day, but through all time". This early metaphorical interpretation of Sabbath applied it to the entire Christian life. Ignatius, cautioning against "Judaizing" in his letter to the Magnesians, contrasts the Jewish Sabbath practices with the Christian life which includes the Lord's Day: "Let us therefore no longer keep the Sabbath after the Jewish manner, and rejoice in days of idleness ... But let every one of you keep the Sabbath after