Reference for Psalms 94:21

יָ֭גוֹדּוּ עַל־נֶ֣פֶשׁ צַדִּ֑יק וְדָ֖ם נָקִ֣י יַרְשִֽׁיעוּ׃

They gather themselves together against the soul of the righteous, And condemn innocent blood.

ספר השרשים