A common misinterpretation applies this verse directly to Satan's primordial fall from heaven, equating the 'Lucifer' of verse 12 solely with the devil, whereas the passage is a prophetic taunt song against the historical king of Babylon, using hyperbolic imagery of his aspired ascent and consequent descent to mock his arrogance; while it may typologically allude to Satan's pride, the primary context targets a human tyrant, not a literal angelic rebellion.
Isaiah 14:15
King James Version (1769)
15 Yet thou shalt be brought down to hell, to the sides of the pit.
Isaiah 14:15 declares the ultimate downfall of the prideful king of Babylon, who sought to exalt himself above God, only to be cast into the depths of Sheol, the grave or realm of the dead, illustrating the biblical principle that God opposes the proud and brings low those who defy His sovereignty, serving as a warning against hubris and a reminder of divine justice that humbles earthly powers.