One verse

Srimad Bhagavatam 2.7.41

2.7.41

नान्तं विदाम्यहममी मुनयोऽग्रजास्ते मायाबलस्य पुरुषस्य कुतोऽवरा ये । गायन् गुणान् दशशतानन आदिदेव: शेषोऽधुनापि समवस्यति नास्य पारम् ॥ ४१ ॥

nantam vidamy aham ami munayo ’gra-jas te maya-balasya purusasya kuto ’vara ye gayan gunan dasa-satanana adi-devah seso ’dhunapi samavasyati nasya param

na
never
antam
end
vidami
do I know
aham
myself
ami
and all those
munayah
great sages
agra-jah
born prior to you
te
you
maya-balasya
of the omnipotent
purusasya
of the Personality of Godhead
kutah
what to speak of others
avarah
born after us
ye
those
gayan
by singing
gunan
the qualities
dasa-sata-ananah
one who has ten hundred faces
adi-devah
the first incarnation of the Lord
sesah
known as Sesa
adhuna
until now
api
even
samavasyati
can achieve
na
not
asya
of Him
param
limit

Neither I nor all the sages born before you know fully the omnipotent Personality of Godhead. So what can others, who are born after us, know about Him? Even the first incarnation of the Lord, namely Sesa, has not been able to reach the limit of such knowledge, although He is describing the qualities of the Lord with ten hundred faces.