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

Psalms 88:29

And I will establish his seed for ever and ever, and his throne as the days of heaven.

Parallel Translations

LXXView canonical →
I will keep my mercy for him for ever, and my covenant [shall be] firm with him.
Brenton's Septuagint Translation