...
A better question would be,
how is this verse about Satan.
"Lucifer has become a by-word for Satan in the Church and in popular literature", as in Dante Alighieri's Inferno and John Milton's Paradise Lost.
LOL
Have you even read Isaiah ?
Quoting: Anonymous Coward 11519284 Smoke and mirrors. Why are you avoiding my question?
But, I'll be gracious and answer yours.
There is no verse or passage in the Bible that says, “Lucifer is Satan,” but an examination of several passages reveals that Lucifer can be none other than Satan. The fall of Lucifer described in Isaiah 14:12 is the same that Jesus referred to in Luke 10:18:
"I saw Satan fall like lightning from heaven.”
A similar fall is depicted in Ezekiel 28. Notice that it is talking about Satan, who was in the Garden of Eden:
“‘You were the seal of perfection,
full of wisdom and perfect in beauty.
You were in Eden,
the garden of God;
...
You were anointed as a guardian cherub,
for so I ordained you.
You were on the holy mount of God;
you walked among the fiery stones.
You were blameless in your ways
from the day you were created
till wickedness was found in you.
...
So I drove you in disgrace from the mount of God,
and I expelled you, guardian cherub,
from among the fiery stones.