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

Malachi 3:10

The year is completed, and ye have brought all the produce into the storehouses; but there shall be the plunder thereof in its house: return now on this behalf, saith the Lord Almighty, [see] if I will not open to you the torrents of heaven, and pour out my blessing upon you, until ye are satisfied.

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