Isaiah 8:18-20 Douay-Rheims 1899 American Edition (DRA)
18 Behold I and my children, whom the Lord hath given me for a sign, and for a wonder in Israel from the Lord of hosts, who dwelleth in mount Sion.
19 And when they shall say to you: Seek of pythons, and of diviners, who mutter in their enchantments: should not the people seek of their God, for the living of the dead?
20 To the law rather, and to the testimony. And if they speak not according to this word, they shall not have the morning light.