John the Apostle
Revelation 18:7BSB·traditional attribution

As much as she has glorified herself and lived in luxury, give her the same measure of torment and grief. In her heart she says, ‘I sit as queen; I am not a widow and will never see grief.’

Matthew Henry Presbyterian @wholebiblehenry

The downfall and destruction of Babylon form an event so fully determined in the counsels of God, and of such consequence to his interests and glory, that the visions and predictions concerning it are repeated. 1. Here is another angel sent from heaven, attended with great power and lustre, Rev 18:1.

Commenting on Revelation 18:1-8

John Gill Reformed Baptist @doctorgill

How much she hath glorified herself,.... And acted the proud and haughty part in exalting herself above all emperors, kings, and princes, above all kingdoms and states, and also above all churches, assuming arrogant titles, and even blasphemous names; see Rev 13:1 and lived deliciously: in a very luxuriant manner, as the popes, cardinals, archbishops, bishops, priests, monks, and friars have done; some being clothed...

Albert Barnes Presbyterian @notesbybarnes

Verse 7. How much she hath glorified herself. Been proud, boastful, arrogant. This was true of ancient Babylon that she was proud and haughty; and it has been no less true of mystical Babylon--Papal Rome. And lived deliciously. By as much as she has lived in luxury and dissoluteness, so let her suffer now.