וַיֻּגַּ֖ד לַאֲבִימֶ֑לֶךְ כִּ֣י הִֽתְקַבְּצ֔וּ כָּֽל־בַּעֲלֵ֖י מִֽגְדַּל־שְׁכֶֽם׃
And it was told Abimelech that all the men of the tower of Shechem were gathered together.
Read midrashic interpretation of Judges 9:47: and classical rabbinic exegesis.