II Samuel 22:35 Philosophy

מְלַמֵּ֥ד יָדַ֖י לַמִּלְחָמָ֑ה וְנִחַ֥ת קֶֽשֶׁת־נְחוּשָׁ֖ה זְרֹעֹתָֽי׃

Who traineth my hands for war, So that mine arms do bend a bow of brass.

Read Jewish philosophical commentary on II Samuel 22:35: and classical philosophical sources.