One verse

Srimad Bhagavatam 4.16.11

4.16.11

दुरासदो दुर्विषह आसन्नोऽपि विदूरवत् । नैवाभिभवितुं शक्यो वेनारण्युत्थितोऽनल: ॥ ११ ॥

durasado durvisaha asanno ’pi viduravat naivabhibhavitum sakyo venarany-utthito ’nalah

durasadah
unapproachable
durvisahah
unbearable
asannah
being approached
api
although
vidura-vat
as if far away
na
never
eva
certainly
abhibhavitum
to be overcome
sakyah
able
vena
King Vena
arani
the wood that produces fire
utthitah
being born of
analah
fire.

King Prthu was born of the dead body of King Vena as fire is produced from arani wood. Thus King Prthu will always remain just like fire, and his enemies will not be able to approach him. Indeed, he will be unbearable to his enemies, for although staying very near him, they will never be able to approach him but will have to remain as if far away. No one will be able to overcome the strength of King Prthu.