כִּֽי־דֹרֵ֣שׁ דָּ֭מִים אוֹתָ֣ם זָכָ֑ר לֹֽא־שָׁ֝כַ֗ח צַעֲקַ֥ת עניים [עֲנָוִֽים׃]
For He that avengeth blood hath remembered them; He hath not forgotten the cry of the humble.
Radak on Psalms
For He that maketh inquisition for blood remembered them: – God, who makes inquisition for the blood of the poor from their oppressors, remembered that blood which the Philistines had shed in Israel.
Radak on Psalms
He did not forget the cry of the meek (ענוים): – The Kethib is written with a yodh (עניים = poor), but the Keri (needs) a waw (ענוים = meek), for the meek are for the most part the poor and helpless.