One verse

Srimad Bhagavatam 12.12.49

12.12.49

मृषा गिरस्ता ह्यसतीरसत्कथा न कथ्यते यद् भगवानधोक्षज: । तदेव सत्यं तदुहैव मङ्गलं तदेव पुण्यं भगवद्गुणोदयम् ॥ ४९ ॥

mṛṣā giras tā hy asatīr asat-kathā na kathyate yad bhagavān adhokṣajaḥ tad eva satyaṁ tad u haiva maṅgalaṁ tad eva puṇyaṁ bhagavad-guṇodayam

mṛṣāḥ
false
giraḥ
words
tāḥ
they
hi
indeed
asatīḥ
untrue
asat-kathāḥ
useless discussions of that which is not eternal
na kathyate
is not discussed
yat
wherein
bhagavān
the Personality of Godhead
adhokṣajaḥ
the transcendental Lord
tat
that
eva
alone
satyam
true
tat
that
u ha
indeed
eva
alone
maṅgalam
auspicious
tat
that
eva
alone
puṇyam
pious
bhagavat-guṇa
the qualities of the Supreme Personality
udayam
which manifests

Words that do not describe the transcendental Personality of Godhead but instead deal with temporary matters are simply false and useless. Only those words that manifest the transcendental qualities of the Supreme Lord are actually truthful, auspicious and pious.