The phrase divine birth sounds contradictory. How can the unborn be born? The Gita raises this very puzzle and answers it in the fourth chapter. People read the teaching in different ways, from literal belief in divine descent to a symbol of how the sacred enters human life. In either case, the verses invite us to think carefully about how we understand God.
Gita 4.6 says the Lord is unborn and eternal, yet voluntarily manifests through His divine power, so divine actions arise from freedom and purpose, not from compulsion or limitation. Gita 4.9 says that truly understanding the Lord's divine birth and actions leads to liberation and God-realization, so study divine teachings deeply instead of viewing God through a purely material perspective. This understanding is described as a real turning point, not a mere theory.
The Gita also models how to approach such a mystery. Gita 4.4 shows Arjuna honestly asking how Krishna, born later, could have taught this wisdom long ago, so do not suppress genuine doubts and ask sincere questions in the pursuit of truth. Gita 10.2 says that neither the gods nor the great sages know the Lord's origin, since He is their source, so accept the limits of the intellect before the infinite and let humility keep your pursuit of knowledge open instead of arrogant.