One verse

Bhagavad Gita 10.20

10.20

अहमात्मा गुडाकेश सर्वभूताशयस्थितः | अहमादिश्च मध्यं च भूतानामन्त एव च ||१०-२०||

ahamātmā guḍākeśa sarvabhūtāśayasthitaḥ . ahamādiśca madhyaṃ ca bhūtānāmanta eva ca ||10-20||

aham
I
ātmā
the soul
guḍākeśa
O Arjuna
sarva-bhūta
of all living entities
āśaya-sthitaḥ
situated within the heart
aham
I am
ādiḥ
the origin
ca
also
madhyam
middle
ca
also
bhūtānām
of all living entities
antaḥ
end
eva
certainly
ca
and

I am the Supersoul, O Arjuna, seated in the hearts of all living entities. I am the beginning, the middle and the end of all beings.