King James Version (KJV)
I behaved myself as though he had been my friend or brother: I bowed down heavily, as one that mourneth for his mother.
Modern English
I went about as though I grieved for my friend or my brother; as one who laments his mother, I bowed down in mourning.
Hebrew
כְּרֵ֤עַ כְּאָ֨ח ׀ לִ֗י הִ֭תְהַלָּכְתִּי כַּאֲבֶל אֵ֑ם קֹדֵ֥ר שַׁח֗וֹתִי׃
kreʿa kʾaḥ ׀ liy hithalaktiy kaʾabel ʾem qoder shaḥvotiy