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

Deuteronomy 17:12

And the man that will do presumptuously, and will not hearken unto the priest that standeth to minister there before the Lord thy God, or unto the judge, even that man shall die: and thou shalt put away the evil from Israel.

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