When Kenneth says to Jenna that only God and his angels can judge and then proceeds to judge Jenna, he is once again reinforcing the myth of Kenneth's immortality. This time instead of just alluding he is an old man, he insinuates that he is an angel.
Tracey's arc in this episode resembles that of Homer Simpson in the Simpsons episode HOMR (2001), in which Homer has a crayon removed from his nasal passage, causing a radical change in his personality, but ultimately decides to have it reinserted, to reverse the change.
Liz says "Popo popped dookie down by the vacants" (in reference to all the actor's on NBC being to white for the black writers) which is a quote from The Wire
Frank's trucker hats read, "Click Here", "Maintenance Required", "Low Oil", and "Butler School".