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

Haggai 2:4

Yet now be strong, O Zorobabel, saith the Lord; and strengthen thyself, O Jesus the high priest, the son of Josedec; and let all the people of the land strengthen themselves, saith the Lord, and work, for I am with you, saith the Lord Almighty;

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