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

Psalms 43:17

All these things are come upon us: but we have not forgotten you, neither have we dealt unrighteously in your covenant.

Parallel Translations

LXXView canonical →
because of the voice of the slanderer and reviler; because of the enemy and avenger.
Brenton's Septuagint Translation