His hands are tied
His hands are tied. In question: Lack of arms. Limited in his abilities (forbidden means bound in chains).
("The king lamented over Abner and said: 'Should Abner die the death of a fool? Your hands were not bound, and your feet were not put into fetters; as one falls before wicked men, you fell'" - 2 Samuel 3:34, David's lament for Abner son of Ner, commander of Saul's army)
Translation
Expression (Hebrew)
יָדָיו אֲסוּרוֹת, יָדָיו כְּבוּלוֹת, יָדָיו קְשׁוּרוֹת
Definition (Hebrew)
יָדָיו קְשׁוּרוֹת. בְּהַשְׁאָלָה: חֲסַר אוֹנִים.מֻוגְבָּל בִּיכוֹלוֹתוֹ (אָסוּר מַשְׁמָע קָשׁוּר בִּכְבָלִים).
("וַיְקֹנֵן הַמֶּלֶךְ אֶל אַבְנֵר וַיֹּאמַר. הַכְּמוֹת נָבָל יָמוּת אַבְנֵר? יָדֶךָ לֹא אֲסֻרוֹת וְרַגְלֶיךָ לֹא לִנְחֻשְׁתַּיִם הֻגַּשׁוּ כִּנְפוֹל לִפְנֵי בְנֵי עַוְלָה נָפָלְתָּ"- שְׁמוּאֵל ב ג לֵד, קִינַת דָּוִד עַל אַבְנֵר בֶּן נֵר שַׂר צְבָא שָׁאוּל)