In Revelation 2:16, the same 'sword of my mouth' is used as a warning of judgment against the Nicolaitans.

Revelation 1:16 first describes the sharp double-edged sword from Christ's mouth — the image used here to introduce the letter.

Revelation 19:15 shows the same sword striking down nations — expanding the judgment theme from local to global scale.

Revelation 19:21 describes the sword killing the beast's armies — the same weapon referenced in the warning here.

Revelation 1:20 defines 'angel of the church,' directly clarifying the addressee of the Pergamum letter.

Isaiah 11:4 prophesies the Messiah striking the earth with the rod of his mouth — the same concept as the sharp sword here.

Isaiah 49:2 uses the same image of a sharp sword as God's mouth, foreshadowing the Messiah's word as a weapon.

Hebrews 4:12 compares God's word to a double-edged sword — a parallel metaphor for divine judgment, though here it is Christ's spoken word.