וַיֹּסִ֙פוּ֙ בְּנֵ֣י יִשְׂרָאֵ֔ל לַעֲשׂ֥וֹת הָרַ֖ע בְּעֵינֵ֣י יְהוָ֑ה וְאֵה֖וּד מֵֽת׃
And the children of Israel again did that which was evil in the sight of the LORD, when Ehud was dead.
Read kabbalistic (mystical) interpretation of Judges 4:1: and classical mystical sources.