וַיִּלָּחֲמ֣וּ פְלִשְׁתִּ֗ים וַיִּנָּ֤גֶף יִשְׂרָאֵל֙ וַיָּנֻ֙סוּ֙ אִ֣ישׁ לְאֹהָלָ֔יו וַתְּהִ֥י הַמַּכָּ֖ה גְּדוֹלָ֣ה מְאֹ֑ד וַיִּפֹּל֙ מִיִּשְׂרָאֵ֔ל שְׁלֹשִׁ֥ים אֶ֖לֶף רַגְלִֽי׃
And the Philistines fought, and Israel was smitten, and they fled every man to his tent; and there was a very great slaughter; for there fell of Israel thirty thousand footmen.
Radak
ואהלים, an indication that he had so many chattels that it required many tents to accommodate them. The word אהלים is spelled with the vowel cholem on the letter aleph, as it is also in Samuel I 4,10 and in Deut. 33,18 ויששכר באהליך According to the regular rules of grammar, the letter א in אהל should have the vowel chataf kametz as is the case in Jeremiah 35,7 and in Judges 8,11. Perhaps when the letter א has the vowel cholem, this is an indication that the noun is in a different declination, a declination known as גוזל תולע. [I confess not to know what this is. Ed.]