Another name for 'Lucifer' (Latin: literally meaning 'light bearing') has not always been associated with
the fallen angel, Satan. Originally, it was simply the Roman name of the planet Venus, the 'morning star' that rose just before the sun. ... In Isaiah 14:12, we find the Hebrew phrase, "HeYLeL BeN-ShaCHaR", meaning 'bright son of the morning/dawn' (i.e. 'bright/glowing morning star'). In the Greek version of the Old Testament (the Septuagint), this was translated as 'Phosphorus' (the Greek name of the
morning star), and thence translated 'Lucifer' in the Latin Vulgate bible. Isaiah chapter 14 probably condemns the arrogance of the kings of Babylon who considered themselves glorious as the
morning star, yet fell to earth. However, due to a confusion of the passages Isaiah 14:12, Luke 10:18 and Revelation 12:7-10, the name 'Lucifer' became applied to the Devil.