Through the window she looked forth, and cried, The mother of Sisera [cried] through the lattice, Why is his chariot so long in coming? Why do the wheels of his chariots wait?
This portion of Deborah's song is beautiful beyond description, exhibiting an imaginative picture of Sisera's mother looking through the windows of Sisera's residence and growing apprehensive at the delay in his return from the battle.  We must correct the scholars who call that residence "the palace," and refer to Sisera's mother as, "the queen mother."  Nothing of that kind is in this passage.  While true enough that Sisera was, in all probability, one of the many "kings of Canaan," there is not a word in Deborah's song that mentions any such possibility, and for critics to allege a contradiction with  Judges 4, alleging that Jabin is "the king" there, and that Sisera is "the king here" is nothing but critical imagination!