|“||I still remember the first moment we met. Mmm. There was nothing, just darkness and... then she appeared. It did not take long for us to light up the universe.||„|
| — God Johnson to Lucifer|
in "God Johnson"
The universe is a physical realm created by God and Goddess long ago. According to Lucifer, when two Celestial Beings fell in love and had sex, it caused the creation of the universe, i.e. "the Big Bang".
Prior to "The Good, the Bad and the Crispy" there was only one known universe, and everything that existed was contained within. Lucifer used the Flaming Sword to cut a tear in the fabric of the universe for Goddess to leave through, to create her own universe. After Goddess passed through, Lucifer threw two pieces of the Flaming Sword through, forever separating the two universes.
Later in "Once Upon a Time", God created an alternate universe that was an exact copy of the original until the day John Decker was supposed to die. With Decker saved, subsequent events play out differently. For example, in this universe Lucifer and Chloe don't meet the night of Delilah's murder.
- All seasons; all episodes except "Once Upon a Time"