Isaiah 8:18–20

18 Behold, I and the children whom the Lord has given me are signs and portents in Israel from the Lord of hosts, who dwells on Mount Zion. 19 And when they say to you, “Consult the mediums and the wizards who chirp and mutter,” should not a people consult their God? Should they consult the dead on behalf of the living? 20 To the teaching and to the testimony! Surely for this word which they speak there is no dawn.