At the end of the first chapter, Krishna has not spoken a single word. Arjuna is now caught in a dilemma. Then Krishna sees what nowadays he's called a teachable moment. Now Krishna will start teaching. He teaches him Vedanta and then Gyanayoga,. The path of knowledge leading to enlightenment directly. And then he teaches Karma Yoga. Basically you can say these are the two answers for questions that M asks Sri Ramakrishna.
Swami Sarvapriyananda summarizes the first chapter of the Bhagavad Gita. This series of talks unfolds the highest truths of Vedanta through the study of "The song of God".