וַיֹּ֛אמֶר גַּם־לְאַנְשֵׁ֥י פְנוּאֵ֖ל לֵאמֹ֑ר בְּשׁוּבִ֣י בְשָׁל֔וֹם אֶתֹּ֖ץ אֶת־הַמִּגְדָּ֥ל הַזֶּֽה׃ (פ)
And he spoke also unto the men of Penuel, saying: ‘When I come back in peace, I will break down this tower.’
Read midrashic interpretation of Judges 8:9: and classical rabbinic exegesis.