Luke 21:24 is perhaps one of the most revealing that is also unique to Revelation.
Let's break it down:
First, the phrase "mouth of a sword"
Strong's Concordance with Hebrew and Greek Lexicon
4750. stoma probably strengthened from a presumed derivative of the base of 5114;
the mouth (as if a gash in the face); by implication, language (and its relations); figuratively, an opening (in the earth); specially, the front or edge (of a weapon):--edge, face, mouth.
The word "mouth" is never used in Mark's Gospel and neither in Matt 24.
This phrase is unique to Luke 21 in the Gospels and Revelation, thus again showing Luke's 70ad Temple/Jerusalem discourse unique relation to the book of Revelation.
Luke 21
15 “for I will give you a mouth and wisdom which all your adversaries will not be able to contradict or resist.
24 "And they shall be falling<4098> by
mouth/edge<4750> of a sword<3162>, and they shall be being led captive<163> into all the Nations<1484>.
And Jerusalem shall be being trampled<3961> by nations<1484> until which may be being filled/plhrwqwsin <4137> Times<kairos<2540>of Nations/eqnwn <1484> [Ezekiel 30:1/Daniel 12/Revelation 11:2/ 13:10]
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A few OT verses:
Job 5:15
He saves the needy from
the sword in their mouth; he saves them from the clutches of the powerful.
Psa 149:6
Let the high praises of God
be in their
mouth,
And a two-edged
sword in their hand,
Isa 1:20
but if
you resist and rebel, you will be devoured by the sword.”
For
the mouth of the LORD has spoken.
Isa 49:2
He made my
mouth like a sharpened sword, in the shadow of his hand he hid me;
he made me into a polished arrow and concealed me in his quiver.
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Luke 21:24 "And they shall be falling<4098> by
mouth<4750> of a sword<3162>, and they shall be being led captive<163> into all the Nations<1484>.
Rev 1:16
In his right hand he held seven stars, and coming out of his
mouth was a sharp, two edged sword<4501>. His face was like the sun shining in all its brilliance.
Rev 2:16
Repent therefore! Otherwise, I will soon come to you and will fight against them with
the sword<4501>
of my mouth.
Rev 19:15
Coming out of his
mouth is a sharp sword<4501> with which to strike down the nations. “He will rule them with an iron scepter.”[fn] He treads the winepress of the fury of the wrath of God Almighty.
Rev 19:21
The rest were killed with
the sword coming out of the mouth<4501> of the rider on the horse,
and all the birds gorged themselves on their flesh.
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Now for the word "sword".
Strong's Concordance with Hebrew and Greek Lexicon
Luke 21:24
"And they shall be falling<4098> by
mouth<4750> of a sword<3162>,
and they shall be being led captive<163> into all the Nations<1484>.
3162. machaira probably feminine of a presumed derivative of 3163;
a knife, i.e. dirk; figuratively, war, judicial punishment:--sword.
This word is unique and used only in Luke of the 70ad Jerusalem/Temple discourse.
1st time used:
Mat 10:34
“Do not think that I came to bring peace on the land.
I did not come to bring peace but a
sword<3162> [Revelation 6:4]
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Used when James was killed:
Act 12:2
Then he killed James the brother of John with
the sword<3162>.
Rom 13:4
For he is God’s minister to you for good. But if you do evil, be afraid; for he does not bear
the sword<3162> in vain;
for he is God’s minister, an avenger to
execute wrath on him who practices evil.
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3 times in Revelation
Rev 6:4
and there went forth another horse -- red, and to him who is sitting upon it, there was given to him to take the peace from the land,
and that
one another they may slay, and there was given to him
a great sword<3162> [Ezekiel 38:21 Luke 21:24].
Ezekiel 38:21 Then will I call against him every terror, declareth My Lord Yahweh.
The sword of every man against his brother shall be;
[
Matthew 10:34 Revelation 6:4]
Rev 13:10
if any one a captivity doth gather, into captivity he doth go away; if any one by
sword<3162> doth kill, it behoveth him by
sword<3162> to be killed;
here is the endurance and the faith of the Saints.
[Luke 21:24]
Rev 13:14
and it leadeth astray those dwelling on the land, because of the signs that were given it to do before the beast,
saying to those dwelling upon the land to make an image to the beast that hath the stroke of
the sword<3162> and did live,