וַיַּעַרְכ֨וּ פְלִשְׁתִּ֜ים לִקְרַ֣את יִשְׂרָאֵ֗ל וַתִּטֹּשׁ֙ הַמִּלְחָמָ֔ה וַיִּנָּ֥גֶף יִשְׂרָאֵ֖ל לִפְנֵ֣י פְלִשְׁתִּ֑ים וַיַּכּ֤וּ בַמַּֽעֲרָכָה֙ בַּשָּׂדֶ֔ה כְּאַרְבַּ֥עַת אֲלָפִ֖ים אִֽישׁ׃
And the Philistines put themselves in array against Israel; and when the battle was spread, Israel was smitten before the Philistines; and they slew of the army in the field about four thousand men.
Read Kabbalistic (mystical) interpretations of I Samuel 4:2: Zohar and classical Jewish mystical sources, free online.