Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX2012

Psalms 89:10

[As for] the days of our years, in them are seventy years; and if [men should be] in strength, eighty years: and the greater part of them would be labor and trouble; for weakness overtakes us, and we shall be chastened.

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