Genesis 25:22

וַיִּתְרֹצְצוּ הַבָּנִים בְּקִרְבָּהּ וַתֹּאמֶר אִם כֵּן לָמָּה זֶּה אָנֹכִי וַתֵּלֶךְ לִדְרֹשׁ אֶת ה'

The children struggled together within her, so she said, "If it is so, why should I live?" and she went to inquire of Hashem.

From this verse, Rabbi Joseph B. Soloveitchik explains a lesson about anti-Semitism. Some people claim that it’s based on economic or political motivations, or that it’s a reaction to Zionism. In truth, hatred of Jews is ingrained in some people from the womb, with no rational exterior factor needed to motivate such a sentiment. (From Mipeninei Harav, cited in the Mesoras HaRav Chumash.)