Reference for Psalms 89:44

אַף־תָּ֭שִׁיב צ֣וּר חַרְבּ֑וֹ וְלֹ֥א הֲ֝קֵימֹת֗וֹ בַּמִּלְחָמָֽה׃

Yea, Thou turnest back the edge of his sword, And hast not made him to stand in the battle.

ספר השרשים