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

Leviticus 6:18

Speak to Aaron and to his sons, saying, This is the law of the sin-offering;—in the place where they slay the whole-burnt-offering, they shall slay the sin-offerings before the Lord: they are most holy.

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