New International Version (©1984)
I will carry out great vengeance on them and punish them in my wrath. Then they will know that I am the LORD, when I take vengeance on them.'"

New Living Translation (©2007)
I will execute terrible vengeance against them to punish them for what they have done. And when I have inflicted my revenge, they will know that I am the LORD."

English Standard Version (©2001)
I will execute great vengeance on them with wrathful rebukes. Then they will know that I am the LORD, when I lay my vengeance upon them.”

New American Standard Bible (©1995)
"I will execute great vengeance on them with wrathful rebukes; and they will know that I am the LORD when I lay My vengeance on them."'"

King James Bible (Cambridge Ed.)
And I will execute great vengeance upon them with furious rebukes; and they shall know that I am the LORD, when I shall lay my vengeance upon them.

GOD'S WORD® Translation (©1995)
I will take fierce revenge on them and punish them with fury. I will take revenge on them. Then they will know that I am the LORD.'"

King James 2000 Bible (©2003)
And I will execute great vengeance upon them with furious rebukes; and they shall know that I am the LORD, when I shall lay my vengeance upon them.

American King James Version
And I will execute great vengeance on them with furious rebukes; and they shall know that I am the LORD, when I shall lay my vengeance on them.

American Standard Version
And I will execute great vengeance upon them with wrathful rebukes; and they shall know that I am Jehovah, when I shall lay my vengeance upon them.

Douay-Rheims Bible
And I will execute great vengeance upon them, rebuking them in fury: and they shall know that I am the Lord, when I shall lay my vengeance upon them.

Darby Bible Translation
And I will execute great vengeance upon them with furious rebukes; and they shall know that I am Jehovah, when I shall lay my vengeance upon them.

English Revised Version
And I will execute great vengeance upon them with furious rebukes; and they shall know that I am the LORD, when I shall lay my vengeance upon them.

Webster's Bible Translation
And I will execute great vengeance upon them with furious rebukes; and they shall know that I am the LORD, when I shall lay my vengeance upon them.

World English Bible
I will execute great vengeance on them with wrathful rebukes; and they shall know that I am Yahweh, when I shall lay my vengeance on them.

Young's Literal Translation
And done upon them great vengeance with furious reproofs, And they have known that I am Jehovah, In My giving out My vengeance on them!
Gill's Exposition of the Entire Bible

And I will execute great vengeance upon them with furious rebukes,.... By way of retaliation for their vengeance and fury, wrath and malice, against his people; suggesting, that the judgments inflicted on them, for quantity and quality, should be very great:

and they shall know that I am the Lord, when I shall lay my vengeance upon them; they shall see the hand of God in it, acknowledge his justice, and confess that their gods were idols, and that the God of Israel is the only true God.
Geneva Study Bible

And I will execute great vengeance upon them with furious rebukes; and they shall know that I am the LORD, when I shall lay my vengeance upon them.
King James Translators' Notes

great vengeance: Heb. great vengeances
Jamieson-Fausset-Brown Bible Commentary

17. know . vengeance-They shall know Me, not in mercy, but by My vengeance on them (Ps 9:16).
Matthew Henry's Concise Commentary

25:8-17 Though one event seem to the righteous and wicked, it is vastly different. Those who glory in any other defence and protection than the Divine power, providence, and promise, will, sooner or later, be ashamed of their glorying. Those who will not leave it to God to take vengeance for them, may expect that he will take vengeance on them. The equity of the Lord's judgments is to be observed, when he not only avenges injuries upon those that did them, but by those against whom they were done. Those who treasure up old hatred, and watch for the opportunity of manifesting it, are treasuring up for themselves wrath against the day of wrath.

 

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since we are on the subject

This was my first scripture I had to read in front of my church when i was ~10
I practiced it so much I had it all memorized word for word.
Joel 2

1 Blow the horn in Zion;
sound the alarm on My holy mountain!
Let all the residents of the land tremble,
for the Day of the LORD is coming;
in fact, it is near—
2 a day of darkness and gloom,
a day of clouds and dense overcast,
like the dawn spreading over the mountains;
a great and strong people appears,
such as never existed in ages past
and never will again
in all the generations to come.

3 A fire destroys[a] in front of them,
and behind them a flame devours.
The land in front of them
is like the Garden of Eden,
but behind them,
it is like a desert wasteland;
there is no escape from them.
4 Their appearance is like that of horses,
and they gallop like war horses.
5 They bound on the tops of the mountains.
Their sound is like the sound of chariots,
like the sound of fiery flames consuming stubble,
like a mighty army deployed for war.

6 Nations writhe in horror before them;
all faces turn pale.
7 They attack as warriors attack;
they scale walls as men of war do.
Each goes on his own path,
and they do not change their course.
8 They do not push each other;
each man proceeds on his own path.
They dodge the arrows, never stopping.
9 They storm the city;
they run on the wall;
they climb into the houses;
they enter through the windows like thieves.

10 The earth quakes before them;
the sky shakes.
The sun and moon grow dark,
and the stars cease their shining.
11 The LORD raises His voice
in the presence of His army.
His camp is very large;
Those who carry out His command are powerful.
Indeed, the Day of the LORD is terrible and dreadful—
who can endure it?
God’s Call for Repentance
12 Even now—
this is the LORD’s declaration—
turn to Me with all your heart,
with fasting, weeping, and mourning.
13 Tear your hearts,
not just your clothes,
and return to the LORD your God.
For He is gracious and compassionate,
slow to anger, rich in faithful love,
and He relents from sending disaster.
14 Who knows? He may turn and relent
and leave a blessing behind Him,
so you can offer grain and wine
to the LORD your God.

15 Blow the horn in Zion!
Announce a sacred fast;
proclaim an assembly.
16 Gather the people;
sanctify the congregation;
assemble the aged;
gather the children,
even those nursing at the breast.
Let the groom leave his bedroom,
and the bride her honeymoon chamber.
17 Let the priests, the LORD’s ministers,
weep between the portico and the altar.
Let them say:
“Have pity on Your people, LORD,
and do not make Your inheritance a disgrace,
an object of scorn among the nations.
Why should it be said among the peoples,
‘Where is their God?’”
God’s Response to His People
18 Then the LORD became jealous for His land and spared His people. 19 The LORD answered His people:

Look, I am about to send you
grain, new wine, and olive oil.
You will be satiated with them,
and I will no longer make you
a disgrace among the nations.

20 I will drive the northerner far from you
and banish him to a dry and desolate land,
his front ranks into the Dead Sea,
and his rear guard into the Mediterranean Sea.
His stench will rise;
yes, his rotten smell will rise,
for he has done catastrophic things.

21 Don’t be afraid, land;
rejoice and be glad,
for the LORD has done great things.
22 Don’t be afraid, wild animals,
for the wilderness pastures have turned green,
the trees bear their fruit,
and the fig tree and grapevine yield their riches.
23 Children of Zion, rejoice and be glad
in the LORD your God,
because He gives you the autumn rain
for your vindication.[c]
He sends showers for you,
both autumn and spring rain as before.
24 The threshing floors will be full of grain,
and the vats will overflow
with new wine and olive oil.

25 I will repay you for the years
that the swarming locust ate,
the young locust, the destroying locust,
and the devouring locust—
My great army that I sent against you.
26 You will have plenty to eat and be satisfied.
You will praise the name of Yahweh your God,
who has dealt wondrously with you.
My people will never again be put to shame.
27 You will know that I am present in Israel
and that I am Yahweh your God,
and there is no other.
My people will never again be put to shame.
God’s Promise of His Spirit
28 [d] After this
I will pour out My Spirit on all humanity;
then your sons and your daughters will prophesy,
your old men will have dreams,
and your young men will see visions.
29 I will even pour out My Spirit
on the male and female slaves in those days.
30 I will display wonders
in the heavens and on the earth:
blood, fire, and columns of smoke.
31 The sun will be turned to darkness
and the moon to blood
before the great and awe-inspiring Day of the LORD comes.
32 Then everyone who calls
on the name of Yahweh will be saved,
for there will be an escape
for those on Mount Zion and in Jerusalem,
as the LORD promised,
among the survivors the LORD calls.