What is the significance of the different names used for Arjuna in the Gita as in 14 11 & 12?

What is the significance of the different names used for Arjuna in the Gita as in 14 11 & 12? For More Videos by Chaitanya Charan Prabhu Click Here: https://www.youtube.com/playlist?list=PLhtmKWc6vRTBRbslK5MoOao4pqSZ182JI