In the following verse:
גּם־חֹשֶׁךְ֘ לֹֽא־יַחְשִׁ֪יךְ מִ֫מֶּ֥ךָ וְ֭לַיְלָה כַּיּ֣וֹם יָאִ֑יר כַּ֜חֲשֵׁיכָ֗ה כָּאוֹרָֽה׃
Even the darkness is not dark to You, And the night is as bright as the day. Darkness and light are alike to You.
(Psa 139:12 NAU)
Why are the words "darkness" and "light" in their feminine form ? (no feminine words in the verse) What does these forms refer to ?
My only idea would be to relate them to the word "night", but this relation would not be clear: even though the word לַיְלָה is masculine, its plural form looks like a feminine form : לֵילוֹת (a "plural indefinite form" according to Wiktionary ). Could that explains the feminine forms for the aforementioned words or is there something else?