Chapter 9 · The Royal Secret · Krishna said
Bhagavad Gita 9.19 — Immortality and death
तपाम्यहमहं वर्षं निगृह्णाम्युत्सृजामि च। अमृतं चैव मृत्युश्च सदसच्चाहमर्जुन ॥
tapāmyahamahaṃ varṣaṃ nigṛhṇāmyutsṛjāmi ca | amṛtaṃ caiva mṛtyuśca sadasaccāhamarjuna ||
Meaning
I give heat; I hold back and send forth the rain. I am immortality and death, Arjuna; I am both being and non-being.