Job 19:28 Midrash

כִּ֣י תֹ֭אמְרוּ מַה־נִּרְדָּף־ל֑וֹ וְשֹׁ֥רֶשׁ דָּ֝בָ֗ר נִמְצָא־בִֽי׃

If ye say: ‘How we will persecute him! ’ Seeing that the root of the matter is found in me;