Bhagavad Gita 11.18

त्वमक्षरं परमं वेदितव्यंत्वमस्य विश्वस्य परं निधानम्।त्वमव्ययः शाश्वतधर्मगोप्तासनातनस्त्वं पुरुषो मतो मे ॥११.१८॥

tvamakṣaraṃ paramaṃ veditavyaṃtvamasya viśvasya paraṃ nidhānamtvamavyayaḥ śāśvatadharmagoptāsanātanastvaṃ puruṣo mato me

You are the Imperishable, the Supreme Being, worthy of being known. You are the great treasure-house of this universe; You are the imperishable protector of the eternal Dharma; You are the Primal Person, I believe.

गीता