Witches' Sabbath (The Great He-Goat) powdered glass, orpiment and iron oxides. He likely worked with mixed materials. Technical analysis indicates that most of the Black Paintings begun with preparatory drawings. "Witches' Sabbath" is the exception; the final composition seems to have been painted directly onto the wall. Art historian Fred Licht notes that Goya's brushwork appears "clumsy, ponderous, and rough" and lacking finish compared to his earlier work. Licht believes this was a deliberate ploy to physically convey dismay at human inadequacy and his own feelings of personal doubt. Unique in the series, "Witches' Sabbath" was not significantly altered by Goya after his initial work.
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