verb/ba.lɛ.je d(ə).vɑ̃ sa pɔʁt/
to put one's own house in order first, to clean up one's own backyard first (before criticising other people)
Compare German vor der eigenen Tür kehren, Dutch voor eigen deur vegen, Czech zamést si před vlastním prahem, Swedish sopa rent framför egen dörr, Serbo-Croatian čistiti pred svojim vratima, etc.