וַתֹּ֤אמֶר נָעֳמִי֙ שֹׁ֣בְנָה בְנֹתַ֔י לָ֥מָּה תֵלַ֖כְנָה עִמִּ֑י הַֽעֽוֹד־לִ֤י בָנִים֙ בְּֽמֵעַ֔י וְהָי֥וּ לָכֶ֖ם לַאֲנָשִֽׁים׃
И Наоми сказала: 'Вернись, дочери мои; почему ты пойдешь со мной? разве у меня еще есть сыновья в утробе их, чтобы они были вашими мужьями?
Ibn Ezra
"Are there yet any more sons in my womb?" Many of our colleagues thought that this response was directed at those who deny (the custom), not realizing that our ancestors transmitted that levirate marriage (yibbum) applies to brothers from the father, not from the mother. She was simply saying to them, if I had sons in my womb, I would give them to you in place of the deceased. This is a manner of affection, not according to the practice of levirate marriage.