Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX

Isaiah 8:21

And famine shall come sorely upon you, and it shall come to pass, [that] when ye shall be hungry, ye shall be grieved, and ye shall speak ill of the prince and your fathers' ordinances: and they shall look up to heaven above,

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