Литература Второго Храма к Берешит 16:5

וַתֹּ֨אמֶר שָׂרַ֣י אֶל־אַבְרָם֮ חֲמָסִ֣י עָלֶיךָ֒ אָנֹכִ֗י נָתַ֤תִּי שִׁפְחָתִי֙ בְּחֵיקֶ֔ךָ וַתֵּ֙רֶא֙ כִּ֣י הָרָ֔תָה וָאֵקַ֖ל בְּעֵינֶ֑יהָ יִשְׁפֹּ֥ט יְהוָ֖ה בֵּינִ֥י וּבֵינֶֽיׄךָ׃

И Сарай сказал Авраму: 'Моя неправота на тебя: я отдал свою служанку в твою грудь; и когда она увидела, что зачала, я презрел в ее глазах: Господь судит меня и тебя.'

The Midrash of Philo

Why does Sarah as it were repent of what she has done, saying to Abraham, I am receiving injury from you: I gave my handmaid into your bosom, and now, because she sees that she has conceived, I am despised before her? (Genesis 16:5).

On Mating with the Preliminary Studies

[139] Do not suppose that by the words “When she saw that she had in the womb” (Gen. 16:4), it is meant that Hagar saw that it was so with herself. It is her mistress Sarah who saw, for afterwards Sarah says of herself, “Seeing that she had in the womb, I was dishonoured before her” (Gen. 16:5).

On Mating with the Preliminary Studies

[153] but easy for God alone,” and therefore Sarah will say quite properly, “God judge between you and me” (Gen. 16:5). She does not hastily condemn Abraham as a wrongdoer, but expresses a doubt as though perhaps his heart may be true and upright. That it is so is shewn unmistakably soon after, when he makes his defence and thereby heals her doubts. “Behold,” he says, “the servant girl is in thy hands. Deal with her as is pleasing to thee” (Gen. 16:6).