Lyrical excellence demands alot from the artist. One of the key signs of a good lyricist is their punchlines. I have heard a few Christian Rappers refer to secular artists in their quests to create the perfect punchline. Eg. My God is BIG, notorious BIG, flow so sick, I need a Dr Dre etc. I am trying to see the relevance in such style. Is this necessary? Do we have to make reference to secular artists in our songs at all?