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

2 Esdras 6:42

Upon the third day thou didst command that the waters should be gathered in the seventh part of the earth: six pats hast thou dried up, and kept them, to the intent that of these some being planted of God and tilled might serve thee.

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