וַיִּשְׁמַ֤ע שָׁאוּל֙ וְכָל־יִשְׂרָאֵ֔ל אֶת־דִּבְרֵ֥י הַפְּלִשְׁתִּ֖י הָאֵ֑לֶּה וַיֵּחַ֥תּוּ וַיִּֽרְא֖וּ מְאֹֽד׃ (פ)
And when Saul and all Israel heard those words of the Philistine, they were dismayed, and greatly afraid.
Read halakhic rulings (Jewish law) on I Samuel 17:11 from the Mishneh Torah and classical halakhic sources, free online.