Jamieson, Fausset and Brown on Revelation 18:9

9. lived deliciously--Greek, "luxuriated." The faithless Church, instead of reproving, connived at the self-indulgent luxury of the great men of this world, and sanctioned it by her own practice. Contrast the world's rejoicing over the dead bodies of the two witnesses (Re 11:10) who had tormented it by their faithfulness, with its lamentations over the harlot who had made the way to heaven smooth, and had been found a useful tool in keeping subjects in abject tyranny. Men's carnal mind relishes a religion like that of the apostate Church, which gives an opiate to conscience, while leaving the sinner license to indulge his lusts.

bewail her--A, B, C, Syriac, Coptic, and Cyprian omit "her."