King James Version (KJV)
And Saul said to David, Thou art not able to go against this Philistine to fight with him: for thou {art but} a youth, and he a man of war from his youth.
Modern English
Saul said to David, “You are not able to go against this Philistine to fight with him; for you are but a youth, and he a man of war from his youth.”
Hebrew
וַיֹּ֨אמֶר שָׁא֜וּל אֶל־דָּוִ֗ד לֹ֤א תוּכַל֙ לָלֶ֙כֶת֙ אֶל־הַפְּלִשְׁתִּ֣י הַזֶּ֔ה לְהִלָּחֵ֖ם עִמּ֑וֹ כִּֽי־נַ֣עַר אַ֔תָּה וְה֛וּא אִ֥ישׁ מִלְחָמָ֖ה מִנְּעֻרָֽיו׃
vayoʾmer shaʾvl ʾel-david loʾ tvkal laleket ʾel-haplishtiy hazeh lhilaḥem ʿimvo kiy-naʿar ʾatah vhvʾ ʾiysh milḥamah minʿurayv