King James Version (KJV)
He teacheth my hands to war, so that a bow of steel is broken by mine arms.
Modern English
He trains my hands for war, so that my arms can bend a bow of bronze.
Hebrew
מְלַמֵּ֣ד יָ֭דַי לַמִּלְחָמָ֑ה וְ֝נִחֲתָ֗ה קֶ֣שֶׁת נְחוּשָׁ֣ה זְרֹעֹתָֽי׃
mlamed yaday lamilḥamah vniḥatah qeshet nḥvshah zroʿotay