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

2 Chronicles 30:18

For the greatest part of the people of Ephraim, and Manasse, and Issachar, and Zabulon, had not purified [themselves], but ate the passover contrary to the scripture. On this account also Ezekias prayed concerning them, saying,

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