Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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Isaiah 2:3

Many peoples shall go and say, “Come, let’s go up to the mountain of Yahweh, to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths.” For the law shall go out of Zion, and Yahweh’s word from Jerusalem.

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