One verse

Bhagavad Gita 15.17

15.17

उत्तमः पुरुषस्त्वन्यः परमात्मेत्युधाहृतः | यो लोकत्रयमाविश्य बिभर्त्यव्यय ईश्वरः ||१५-१७||

uttamaḥ puruṣastvanyaḥ paramātmetyudhāhṛtaḥ . yo lokatrayamāviśya bibhartyavyaya īśvaraḥ ||15-17||

uttamaḥ
the best
puruṣaḥ
personality
tu
but
anyaḥ
another
parama-ātmā
the Supreme Self
iti
thus
udāhṛtaḥ
is said
yaḥ
who
loka
of the universe
trayam
the three divisions
āviśya
entering
bibharti
is maintaining
avyayaḥ
inexhaustible
īśvaraḥ
the Lord

Besides these two, there is the greatest living personality, the Supreme Soul, the imperishable Lord Himself, who has entered the three worlds and is maintaining them.