"When the man who had the final piece of the Flaming Sword is murdered and the piece goes missing, Mom joins Chloe and Lucifer on the case to track down the killer. But when Lucifer gets sidelined, Maze recruits him to help save Dr. Linda's endangered career and confronts him about the secrets he's been keeping."
Amenadiel tells Lucifer to give him his ring so that they could prove it opens the sword. Lucifer notices something and tries to tell his brother something, as Amenadiel tries to confirm for both of them that Lucifer is the favorite son. Finally, Lucifer gets his brother attention by telling him to look down and it is shown Amenadiel's necklace reacting to the sword, meaning it is the final piece. Lucifer tells his brother God entrusted the key to him which means he is the favorite son not Lucifer, as Amenadiel is shocked.
- Chet basically causes his demise in more than one way.
- He killed the man snuggling the ancient Sumerian text Goddess needed.
- This lead to taking down his mother, and him seeking revenge; instead, he got cooked extra crispy.
- This episode suggests Amenadiel is God's favorite angel since he has the key.