Midrash on Deuteronomy 29:17: Bereshit Rabbah & Classical Sources

פֶּן־יֵ֣שׁ בָּ֠כֶם אִ֣ישׁ אוֹ־אִשָּׁ֞ה א֧וֹ מִשְׁפָּחָ֣ה אוֹ־שֵׁ֗בֶט אֲשֶׁר֩ לְבָב֨וֹ פֹנֶ֤ה הַיּוֹם֙ מֵעִם֙ יְהוָ֣ה אֱלֹהֵ֔ינוּ לָלֶ֣כֶת לַעֲבֹ֔ד אֶת־אֱלֹהֵ֖י הַגּוֹיִ֣ם הָהֵ֑ם פֶּן־יֵ֣שׁ בָּכֶ֗ם שֹׁ֛רֶשׁ פֹּרֶ֥ה רֹ֖אשׁ וְלַעֲנָֽה׃

lest there should be among you man, or woman, or family, or tribe, whose heart turneth away this day from the LORD our God, to go to serve the gods of those nations; lest there should be among you a root that beareth gall and wormwood;

Read Midrashic interpretations of Deuteronomy 29:17: rabbinic exegesis from Bereshit Rabbah, Shemot Rabbah and classical Midrash sources, free.