At the end of the episode the last word Lucifer said about an escaped prisoner of Hell was the word “mom”. It shocked Lucifer’s brother too.
I assume next season it will be about “mommy issues” plus “daddy issues”. So who is the Mother of Angels? Its actually a good question.
The only theory I have is that he meant the mother of Maze and others like her which would be Lilith.
Is there anything in the Bible or in the books not included or folklore indicating they have a mother? Which would mean God had a wife or girlfriend. Of course why would she be so dangerous that she is locked up.
If you are nit watching you are missing best new show of season.