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

Isaiah 44:23

Rejoice, ye heavens; for God has had mercy upon Israel: sound the trumpet, ye foundations of the earth: ye mountains, shout [with] joy, ye hills, and all the trees therein: for God has redeemed Jacob, and Israel shall be glorified.

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