Mortal Sins examines the motivations of the characters in this episode with a flashback analysis of episodes 1-4. Lucifer, Maria, and Levi all have different needs and desires, but they still came together as a team to help fight the Mortal Sins. There's plenty more to come.
I would have preferred an 
innocent angel, but...
Mir wär ein unschuldiges
Engelchen zwar lieber, aber …
Habría preferido
un ángel inocente, pero…
Habría preferido
un ángel inocente, pero…
J’aurais tellement préféré
me faire un ange encore pur…
Avrei preferito avere
un angelo innocente fra le mani, però...
Eu preferiria um anjo
inocente e puro, mas...
Хотя, будь ты невинным ангелом, 
это было бы интереснее.