What do you see when comparing these two passages to one another in these two "Translations" ?
[h=1]Isaiah 14:12King James Version (KJV)
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![/h][h=1]Isaiah 14:12New International Version (NIV)
12 How you have fallen from heaven, morning star, son of the dawn!You have been cast down to the earth,you who once laid low the nations![/h]
[h=1]Revelation 22:16King James Version (KJV)
16 I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star.[/h][h=1]Revelation 22:16New International Version (NIV)
16 “I, Jesus, have sent my angel to give you[a] this testimony for the churches. I am the Root and the Offspring of David,and the bright Morning Star.”[/h]
[h=1]Isaiah 14:12King James Version (KJV)
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![/h][h=1]Isaiah 14:12New International Version (NIV)
12 How you have fallen from heaven, morning star, son of the dawn!You have been cast down to the earth,you who once laid low the nations![/h]
[h=1]Revelation 22:16King James Version (KJV)
16 I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star.[/h][h=1]Revelation 22:16New International Version (NIV)
16 “I, Jesus, have sent my angel to give you[a] this testimony for the churches. I am the Root and the Offspring of David,and the bright Morning Star.”[/h]