וַתַּעֲרֹ֤ךְ יִשְׂרָאֵל֙ וּפְלִשְׁתִּ֔ים מַעֲרָכָ֖ה לִקְרַ֥את מַעֲרָכָֽה׃
Humanay ang Israel at ang mga Filisteo, hukbo laban sa hukbo.
Rashi
Yisroel deployed. Referring to Yisroel's battalions.13That is why the feminine form [וַתַּעֲרֹךְ] is used because it is referring to מַעֲרָכָה which is grammatically feminine.