In episode 307 we meet Linda’s former husband, journalist Reese Getty. He sees Lucifer’s real face and begins an extensive investigation into who and what Lucifer Morningstar really is. Among the things he added to his wall was the following quote:  

“How you have fallen from heaven, morning star, son of the dawn! You have been cast down to the earth, you who once laid low the nations!  You said in your heart, "I will ascend into heaven. I will exalt my throne above the stars of God. I will sit on the mountain of assembly, in the far north.  I will ascend above the heights of the clouds. I will make myself like the Most High."”