The word, "Lucifer" occurs just once in the Bible.
Isaiah 14:12 How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations!
The word in the Hebrew means ‘light bearer’. In other versions it is translated as follows:
ASV, ERV – ‘O day-star, son of the morning!’
YLT – ‘O shining one, son of the dawn!’
NIV – ‘O morning star, son of the dawn!’
NRSV, ESV – ‘O Day Star, son of Dawn!’
It is used figuratively to describe the king of Babylon. This is clear from the context:
Isaiah 14:4 That thou shalt take up this proverb against the king of Babylon, and say, How hath the oppressor ceased! the golden city ceased! 5 The LORD hath broken the staff of the wicked, and the sceptre of the rulers.
As the king of Babylon was a descendent of Adam it is reasonable to conclude that Adam sinned before Lucifer.
The all too common belief that Lucifer is a name applied to a fallen angel (otherwise referred to as the devil and Satan) is fictitious nonsense.
Notwithstanding Christian mythology, angels do not and cannot sin. The will of God is and has always been done in heaven without fail. Hence the prayer:
Matthew 6:10 ...Thy will be done in earth, as it is in heaven.
The promise to those who believe and obey the gospel is that they will be made equal to the angels. If angels sin we will be no better off than we are now.
Luke 20:36 Neither can they die any more: for they are equal unto the angels; and are the children of God, being the children of the resurrection.
The wages of sin is death (Romans 6:23). It follows that if we cannot die then we cannot sin. This must be also true of the angels if we are to be made equal unto them.
May I suggest that you click on the link below and read:
I hope you have found this helpful.
May God bless you,