New Revised Standard Version
If Edom says, “We are shattered but we will rebuild the ruins,” the LORD of hosts says: They may build, but I will tear down, until they are called the wicked country, the people with whom the LORD is angry forever.

Contemporary English Version
Esau's descendants may say, "Although our nation Edom is in ruins, we will rebuild it." But I, the LORD All-Powerful, promise to tear down whatever they build. Then everyone will know that I will never stop being angry with them as long as they are so sinful.

New American Bible
If Edom says, “We have been crushed, but we will rebuild the ruins,” Thus says the LORD of hosts: They indeed may build, but I will tear down, And they shall be called “territory of wickedness,” the people with whom the LORD is angry forever.

Douay-Rheims Bible
But if Edom shall say: We are destroyed, but we will return and build up what hath been destroyed: thus saith the Lord of hosts: They shall build up, and I will throw down: and they shall be called the borders of wickedness, and the people with whom the Lord is angry for ever.

But if Edom shall say: We are destroyed, but we will return and build up what hath been destroyed: thus saith the Lord of hosts: They shall build up, and I will throw down: and they shall be called the borders of wickedness, and the people with whom the Lord is angry for ever.

but.

Isaiah 9:9,10 And all the people of Ephraim shall know, and the inhabitants of Samaria that say in the pride and haughtiness of their heart: . . .

James 4:13-16 But who art thou that judgest thy neighbour? Behold, now you that say: To-day or to-morrow we will go into such a city, and there we will spend a year and will traffic and make our gain. . . .

They shall build.

Job 9:4 He is wise in heart, and mighty in strength: who hath resisted him, and hath had peace?

Job 12:14 If he pull down, there is no man that can build up: if he shut up a man, there is none that can open.

Job 34:29 For when he granteth peace, who is there that can condemn? When he hideth his countenance, who is there that can behold him, whether it regard nations, or all men?

Psalm 127:1 A gradual canticle of Solomon. Unless the Lord build the house, they labour in vain that build it. Unless the Lord keep the city, he watcheth in vain that keepeth it.

Proverbs 21:30 There is no wisdom, there is no prudence, there is no counsel against the Lord.

Isaiah 10:4,15,16 That you be not bowed down under the bond, and fall with the slain? In all these things his anger is not turned away, but his hand is stretched out still. . . .

Lamentations 3:37 Mem. Who is he that hath commanded a thing to be done, when the Lord commandeth it not?

Matthew 12:30 He that is not with me, is against me: and he that gathereth not with me, scattereth.

The border.

Jeremiah 31:17 And there is hope for thy last end, saith the Lord: and the children shall return to their own borders.

Ezekiel 11:10 You shall fall by the sword: I will judge you in the borders of Israel, and you shall know that I am the Lord.

Amos 6:2 Pass ye over to Chalane, and see, and go from thence into Emath the great: and go down into Geth of the Philistines, and to all the best kingdoms of these: if their border be larger than your border.

The people.

Malachi 1:3 But have hated Esau? and I have made his mountains a wilderness, and given his inheritance to the dragons of the desert.

Psalm 137:7 Remember, O Lord, the children of Edom, in the day of Jerusalem: Who say: Rase it, rase it, even to the foundation thereof.

Isaiah 11:14 But they shall fly upon the shoulders of the Philistines by the sea, they together shall spoil the children of the east: Edom, till Moab shall be under the rule of their hand, and the children of Ammon shall be obedient.

Isaiah 34:5,10 For my sword is inebriated in heaven: behold it shall come down upon Idumea, and upon the people of my slaughter unto judgment. . . .

Isaiah 63:1-6 Who is this that cometh from Edom, with dyed garments from Bosra, this beautiful one in his robe, walking in the greatness of his strength. I, that speak justice, and am a defender to save. . . .

Lamentations 4:21,22 Sin. Rejoice, and be glad, O daughter of Edom, that dwellest in the land of Hus: to thee also shall the cup come, thou shalt be made drunk, and naked. . . .

Ezekiel 25:14 And I will lay my vengeance upon Edom by the hand of my people Israel: and they shall do in Edom according to my wrath, and my fury: and they shall know my vengeance, saith the Lord God.

Ezekiel 35:9 I will make thee everlasting desolations, and thy cities shall not be inhabited: and thou shalt know that I am the Lord God.