Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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Hosea 1:10

Yet the number of the children of Israel will be as the sand of the sea, which can’t be measured or counted; and it will come to pass that, in the place where it was said to them, ‘You are not my people,’ they will be called ‘sons of the living God.’

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