Bhagavad Gita 4.6

अजोऽपि सन्नव्ययात्मा भूतानामीश्वरोऽपि सन् |
प्रकृतिं स्वामधिष्ठाय संभावनाम्यात्ममयया

Translation

Although I am unborn, the Lord of all living entities, and have an imperishable nature, yet I appear in this world by virtue of Yogmaya, My divine power.