चातुर्वर्ण्यं मया सृष्टं गुणकर्मविभागश: | तस्य कर्तारमपि मां विद्ध्यकर्तारमव्ययम् ॥13॥
chātur-varṇyaṁ mayā sṛiṣhṭaṁ guṇa-karma-vibhāgaśhaḥ tasya kartāram api māṁ viddhyakartāram avyayam
chātuḥ-varṇyam—the four categories of occupations; mayā—by me; sṛiṣhṭam—were created; guṇa—of quality; karma—and activities; vibhāgaśhaḥ—according to divisions; tasya—of that; kartāram—the creator; api—although; mām—me; viddhi—know; akartāram—non-doer; avyayam—unchangeable
The four castes have been created by Me through a classification of the gunas and duties. Even though I am the agent of that (act of classification), still know Me to be a non-agent and changeless.