אָח֥וֹת לָ֙נוּ֙ קְטַנָּ֔ה וְשָׁדַ֖יִם אֵ֣ין לָ֑הּ מַֽה־נַּעֲשֶׂה֙ לַאֲחֹתֵ֔נוּ בַּיּ֖וֹם שֶׁיְּדֻבַּר־בָּֽהּ׃
We have a little sister, And she hath no breasts; What shall we do for our sister In the day when she shall be spoken for?
Rashi on Song of Songs
We have a [little] sister. In the earthly abode, who unites, joins and desires to be with us, and she is little and humbles herself more than all the nations, as the matter is stated, “Not because you are more numerous, etc.”10Devorim 7:7. for they humble themselves.
Ezra ben Solomon on Song of Songs
We have a little sister: The parable refers to Israel in exile, despised and degraded.
Rashi on Song of Songs
A [little] sister. אָחוֹת is] an expression of joining, [as in,] “These are the rends that may not be sewn up completely מִתְאַחִין.”11Maseches Mo’ed Katan 26a.