Isaiah 56:8 explicitly declares God's gathering of Israel's outcasts — directly reinforcing the promise of the great trumpet's regathering.

Isaiah 11:16 also promises a highway from Assyria for the remnant, reinforcing the same regathering theme from exile.

In Isaiah 18:3, a trumpet sound and banner are signals to the whole earth—paralleling the great trumpet in Isaiah 27:13 that summons dispersed Israel to worship.

In Isaiah 43:5, God promises to gather offspring from east and west, echoing the ingathering theme of Isaiah 27:13.

In Isaiah 11:11, the Lord recovers the remnant from Assyria and Egypt, identical to the exiles mentioned in Isaiah 27:13.

Isaiah 66:18 speaks of gathering all nations and tongues — a universal scope that includes but surpasses the return of Israel's exiles.

Isaiah 2:3 depicts nations streaming to Zion for worship — expanding the gathering of exiles to a universal pilgrimage.

Isaiah 11:12 broadens the gathering to the four corners, while 27:13 focuses on Assyria and Egypt.

Isaiah 19:23-25 expands the vision: Egypt and Assyria are blessed alongside Israel, not just a regathering but a reconciled future.

Isaiah 25:6 describes a feast on Mount Zion for all peoples — the joyful celebration that accompanies the regathering.

Jeremiah 43:7 records the disobedient flight into Egypt — the opposite of the promised return from Egypt in the main verse.

Hosea 9:3 warns of exile to Egypt and Assyria as judgment, contrasting with Isaiah's trumpet of restoration.

Jeremiah 44:28 promises a remnant returning from Egypt — echoing the same regathering from Egypt foretold in the main verse.

Zechariah 10:8-12 elaborates on regathering from Egypt and Assyria, using a whistle instead of a trumpet but the same promise.

Zechariah 9:14-16 has the Lord sounding a trumpet to save and gather His people like jewels, directly paralleling the gathering trumpet in Isaiah.

Hosea 11:11 prophesies the return from Egypt and Assyria like birds, directly paralleling Isaiah's gathering by trumpet.

Hosea 8:13 threatens a return to Egypt as punishment — reversing the deliverance from Egypt proclaimed in the main verse.

Matthew 24:31 depicts Jesus sending angels with a trumpet to gather the elect, a clear NT fulfillment of the OT trumpet-gathering imagery.

In John 4:21-24, Jesus teaches that true worship is not bound to a mountain — contrasting the physical gathering to Zion here.

1 Thessalonians 4:16 describes the trumpet of God at Christ's return raising the dead, directly matching the gathering trumpet in Isaiah.

2 Kings 17:6 records the historical Assyrian deportation that Isaiah 27:13 promises to reverse with a trumpet call.

In Hebrews 12:22, the earthly gathering to Mount Zion is reinterpreted as the heavenly Jerusalem — a typological fulfillment.

In Revelation 11:15-18, the seventh trumpet heralds God's reign and judgment, fulfilling the prophetic pattern of Isaiah's trumpet call to worship on Mount Zion.

In Zechariah 10:10, the explicit return from Egypt and Assyria exactly mirrors the outcasts from those lands here.

In 1 Corinthians 15:52, the last trumpet raises the dead—a direct echo of this eschatological trumpet gathering God's people.

In Zechariah 8:7, the saving of people from east and west parallels the gathering from Assyria and Egypt in this prophecy.

In Zephaniah 3:20, the promise to bring back the captivity and gather the people strongly parallels the regathering of outcasts here.

In Micah 7:12, the gathering from Assyria and distant places directly echoes the same regathering scene described here.

Ezekiel 28:25 promises to gather the house of Israel from among the peoples, directly paralleling the regathering in Isaiah.

In Hosea 3:5, the return of Israel to seek the LORD and David their king parallels the regathering prophecy here, both pointing to latter-day restoration.

Ezekiel 39:25 speaks of bringing back the captivity of Jacob, reinforcing the restoration theme of Isaiah 27:13.

Ezekiel 37:21 declares God will gather Israel from every side and bring them home, a clear parallel to the trumpet call.

Ezekiel 36:24 repeats the promise to gather Israel from all countries, echoing the return from Assyria and Egypt.

Ezekiel 20:41 describes God gathering scattered Israel from among the nations, identical in theme to the trumpet gathering.

Jeremiah 23:8 repeats the oath formula for regathering from all nations, directly parallel to the trumpet call assembly.

Jeremiah 23:3 similarly promises to gather the remnant from every country, matching the gathering from Assyria and Egypt.

Jeremiah 16:15 echoes the same promise of regathering from all lands where they were driven, reinforcing the restoration theme.

In Psalm 147:2, God gathers the outcasts of Israel, directly paralleling the ingathering of exiles from Assyria and Egypt.

In Leviticus 25:9, the Jubilee trumpet proclaims liberty and return to ancestral property—a type of the great trumpet in Isaiah 27:13 announcing Israel's restoration.

Leviticus 23:24 institutes the Feast of Trumpets — a holy convocation blown on trumpets, echoing the great trumpet call here for gathering worshippers.

Zechariah 14:16 envisions nations worshipping in Jerusalem — a later prophecy that fulfills the mountain gathering of the main verse.

In Numbers 10:2-4, silver trumpets summon the congregation to assembly—the same gathering function as the great trumpet in Isaiah 27:13 for dispersed Israel.

In Zephaniah 3:10, the dispersed from beyond Ethiopia bring offerings, paralleling the gathering of outcasts from Egypt and Assyria here.

Malachi 1:11 declares God's name great among the nations everywhere — contrasting with the centralized worship at Jerusalem in the main verse.

In Psalm 47:5, trumpets accompany God’s ascent as King—similar to the trumpet in Isaiah 27:13 that calls Israel to worship the Lord on His holy mountain.