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 worship, and in the duties of necessity and mercy." Strict Sunday Sabbatarianism is sometimes called "Puritan Sabbath", which may be contrasted with "Continental Sabbath". The latter follows the reformed confessions of faith of Continental Europe such as the "Heidelberg Catechism", which emphasize rest and worship on the Lord's Day, but do not explicitly forbid recreational activities. However, in practice, many continental Reformed Christians also abstain from recreation on the Sabbath, following the admonition by the Heidelberg Catechism's author Zacharaias Ursinus that "To keep holy the Sabbath, is not to spend the day in slothfulness and idleness". Though first-day Sabbatarian practice