For violence against your brother Jacob [Israel]

The Edomites (Esau's descendants) took advantage of the nation of Israel during the time of their distress, such as in their captivity by the Babylonians in the late 7th and early 6th centuries BC. God was angry with the Edomites for their mistreatment of Israel and Judah as we read in the prophet Obadiah:

8 Will I not in that day, says the LORD,

Even destroy the wise men from Edom,

And understanding from the mountains of Esau?

…

10 For violence against your brother Jacob [Israel]

...

11 In the day that you stood on the other side—

In the day that strangers carried captive

his [Israel] forces,

When foreigners entered his gates

And cast lots for Jerusalem—

Even you [Esau/ Edom] were as one of them.

12 "But you should not have gazed

on the day of your brother

In the day of his captivity;

Nor should you have rejoiced over the children of Judah

In the day of their destruction;

Nor should you have spoken proudly

In the day of distress.

13 You should not have entered the gate of My people [Israel/ Judah]

In the day of their calamity.

Indeed, you should not have gazed on their affliction

In the day of their calamity,

Nor laid hands on their substance

In the day of their calamity.

14 You should not have stood at the crossroads

To cut off those among them who escaped;

Nor should you have delivered up

those among them who remained

In the day of distress.

15 For the day of the LORD upon all the nations is near;

As you have done, it shall be done to you;

Your reprisal shall return upon your own head.

16 For as you drank on My holy mountain,

So shall all the nations drink continually;

Yes, they shall drink, and swallow,

And they shall be as though they had never been.

17 But on Mount Zion there shall be deliverance,

And there shall be holiness;

The house of Jacob shall possess their possessions.

18 The house of Jacob shall be a fire,

And the house of Joseph a flame;

But the house of Esau shall be stubble;

They shall kindle them and devour them,

And no survivor shall remain of the house of Esau,

For the LORD has spoken.

19 The South shall possess the mountains of Esau,

And the Lowland shall possess Philistia.

They shall possess the fields of Ephraim

And the fields of Samaria.

Benjamin shall possess Gilead.

20 And the captives of this host of the children of Israel

Shall possess the land of the Canaanites

As far as Zarephath.

The captives of Jerusalem who are in Sepharad

Shall possess the cities of the South.

21 Then saviors shall come to Mount Zion

To judge the mountains of Esau,

And the kingdom shall be the LORD's. Obadiah 1:8-21