Psalm 21:9 speaks of God's wrath as a fiery oven devouring enemies, matching the fire and coals imagery here.

Psalm 11:6 describes God raining fire and brimstone on the wicked, directly paralleling the fire from God's mouth here.

Psalm 97:3 depicts fire going before God to consume enemies — same theophanic fire imagery as in Psalm 18:8.

Psalm 144:5 also has mountains smoking at God's touch, echoing the smoke imagery from God's nostrils here.

Psalm 104:32 says God's touch makes mountains smoke, paralleling the smoke from God's nostrils here as a theophanic sign.

In Daniel 7:10, a stream of fire issues from God's throne, matching the 'devouring fire from his mouth' in this theophany.

Nahum 1:6 echoes the same divine fire and wrath imagery — God's anger poured out like fire that shatters rocks.

In 2 Thessalonians 1:8, Christ returns 'in flaming fire' to inflict vengeance, a clear NT parallel to the devouring fire here.

In Deuteronomy 29:20, the LORD's anger 'will smoke' against the disobedient, directly echoing the 'smoke from his nostrils' here.

2 Samuel 22:9 is the parallel account of David's song, nearly identical wording describing God's theophanic anger.

Isaiah 10:17 portrays God as a fire consuming thorns and briers — same consuming fire imagery as in Psalm 18:8.

Isaiah 11:4 uses the same mouth imagery for judgment — the breath of his lips kills the wicked, echoing the devouring fire from God's mouth.

Revelation 11:5 applies the 'fire from the mouth' motif to the two witnesses — a direct echo of God's theophanic fire.

Job 41:19 describes Leviathan with firebrands from its mouth — a similar image but applied to a creature, not God.

Job 41:21 continues Leviathan's fiery breath — flames and coals from its mouth parallel God's fire in Psalm 18:8.

In Numbers 16:35, fire from the LORD consumes the 250 incense offerers, similar to the devouring fire from God's mouth.

In Leviticus 10:2, divine fire consumes Nadab and Abihu, mirroring the devouring fire from God's mouth in this theophany of judgment.

Revelation 15:8 shows smoke filling the temple from God's glory, similar to the smoke from God's nostrils in Psalm 18:8, though the context differs.

Isaiah 6:4 describes smoke filling the temple at God's presence — similar smoke imagery to the theophany in Psalm 18:8.

In Numbers 11:1, the LORD's fire burns among complaining Israelites, paralleling the fiery judgment imagery here.

In Deuteronomy 29:23, the land is burned with brimstone as divine judgment, akin to the devouring fire from God's mouth.

In Deuteronomy 29:24, the 'heat of this great anger' explains the fiery wrath depicted here, though less directly.