1. Revelation 14:8 (ESV)
  2. Exposition

How is "sexual immorality" to be understood here?

Revelation 14:8 (ESV)

8 Another angel, a second, followed, saying, “Fallen, fallen is Babylon the great, she who made all nations drink the wine of the passion of her sexual immorality.”

The term sexual immorality is not meant to be taken literally but is reference first to her worship of idols (cf. Ezekiel 16:1–63; Hosea 1:2–3; this spiritual adultery can include temple prostitutes, etc.).