Krishna spoke these words. These are literally the first words that Krishna has spoken in the Gita. And they are hammer blows, they are scolding, they are sharp words. In fact, to a person who is confused and shaky and in the midst of almost a nervous breakdown, a reality check, a sudden shock is necessary. He gives a big shock to Arjuna. You see, when he was saying all these things, this is bad, we shouldn't fight this war and let them do what they want. Let's just get away from this place."
Swami Sarvapriyananda teaches Chapter 2 (Verse 1-10) of the Bhagavad Gita. This series of talks unfolds the highest truths of Vedanta through the study of "The Song of God".