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!

Ver. 12. How art thou fallen from heaven, O Lucifer!] That is, not O Belzeebub, as some ancients, but, O Belshazzar rather, called Lucifer here, or the morning star, for his beauty and brightness; and as much wonder it was to see the Chaldean monarch at such an under, as to have seen Lucifer, the sun's constant companion, fallen from heaven. He was the terror of the world, and, as he thought, superior to fortune; yet a sudden and dismal change befell him. In the chariot of the Roman triumpher, there hung up a little bell and a whip, to put him in mind he might one day be whipped as a slave, or as an offender lose his head. Nemo confidat mimium secundis. Let no one rely on the least favours.