In Revelation 19:21, the birds eat the flesh of the slain — this is the immediate fulfillment of the angel's summons here.

Revelation 16:16 describes the kings gathering at Armageddon, the battle that leads to the great supper where birds feast on their flesh.

Isaiah 34:1-8 depicts a great slaughter where birds feast on the slain — a direct OT parallel to this 'great supper of God' imagery.

Ezekiel 39:17-20 explicitly calls birds to a sacrificial feast on the slain of Gog — a clear OT type of this great supper of God.

Ezekiel 29:5 gives Pharaoh's corpse to birds and beasts as food—a direct OT precedent for the imagery of birds consuming the defeated enemy forces.

Luke 17:37 records Jesus saying vultures gather where there is a corpse, providing the same imagery of birds assembling for judgment.

Zephaniah 3:8 describes God gathering nations for wrath, similar to the gathering of birds for judgment.

Zephaniah 1:7 announces the Lord's sacrifice and guests, a direct OT counterpart to the summoning call.

Ezekiel 39:18 describes the sacrificial feast for birds, matching the 'supper of the great God' imagery.

Ezekiel 39:4 gives birds to devour Gog, a clear OT parallel to the bird supper for the great God.

Ezekiel 32:4 has birds devouring Pharaoh's corpse, directly mirroring the bird call to devour the wicked.

Ezekiel 31:13 shows birds lodging on the fallen cedar, prefiguring the birds summoned to feast on God's enemies.

In 1 Samuel 17:46, David prophesies that birds will eat the flesh of the Philistine army — a similar promise of divine judgment.

Jeremiah 34:20 explicitly states dead bodies become food for birds and beasts—a clear parallel to the invitation for birds to feast here.

Jeremiah 15:3 lists birds among the destroyers that devour corpses—this same judgment motif is expanded in the call to the birds in Revelation.

Jeremiah 7:33 uses the exact image of birds devouring the dead bodies of the people—a direct foreshadowing of the great supper of God here.

Isaiah 18:6 directly says birds of prey will feast on the slain—a clear parallel to the great supper of God in Revelation.

Psalm 68:23 shows enemies' blood shared with dogs—a parallel to birds eating the slain in Revelation's great supper.

Psalm 63:10 describes enemies becoming food for jackals—a direct parallel to the birds feasting on the slain in Revelation.

Zechariah 14:12 depicts a similar divine judgment where enemies' flesh decays while still standing, reinforcing the theme of birds feasting on the slain.

1 Kings 14:11 pronounces that birds will eat the dead of Jeroboam's house — a similar image of divine judgment through consumption by birds.

Jeremiah 46:10 calls it 'the day of vengeance, a sacrifice to the Lord'—this sacrificial imagery aligns with the 'great supper of God' where birds feast on the slain.

Isaiah 66:24 portrays the dead bodies of rebels as an eternal abhorrence—while this verse calls birds to eat the slain, both show the aftermath of God's final judgment.

Isaiah 56:9 calls for beasts and birds to come devour — a similar summons to judgment, though likely against Israel's leaders.