The text says 'Only from knowledge comes liberation,' but then mentions the need to destroy sinful karma. How do these two concepts relate?

Chapter 50 clarifies this relationship by presenting a necessary sequence. While it affirms the Vedic theorem that "Only from knowledge comes liberation" is unassailable, it introduces a critical prerequisite. The text explicitly states that "without the destruction of sinful karma, the dawn of knowledge is impossible." This implies that purifying oneself by resolving sinful karma is a foundational step that must be taken before true spiritual knowledge can even begin to manifest. Once that knowledge dawns, it then leads to the ultimate goal of liberation from the bondage of Maya.