New Revised Standard Version
Then Abner called to Joab, “Is the sword to keep devouring forever? Do you not know that the end will be bitter? How long will it be before you order your people to turn from the pursuit of their kinsmen?”

Contemporary English Version
Abner shouted to Joab, "Aren't we ever going to stop killing each other? Don't you know that the longer we keep on doing this, the worse it's going to be when it's all over? When are you going to order your men to stop chasing their own relatives?"

New American Bible
Then Abner called to Joab and said: “Must the sword devour forever? Do you not know that afterward there will be bitterness? How long before you tell the people to stop pursuing their brothers?”

Douay-Rheims Bible
And Abner cried out to Joab, and said: Shall thy sword rage unto utter destruction? knowest thou not that it is dangerous to drive people to despair? how long dost thou defer to bid the people cease from pursuing after their brethren?

And Abner cried out to Joab, and said: Shall thy sword rage unto utter destruction? knowest thou not that it is dangerous to drive people to despair? how long dost thou defer to bid the people cease from pursuing after their brethren?

Shall

2 Samuel 2:14 And Abner said to Joab: Let the young men rise, and play before us. And Joab answered: Let them rise.

Acts 7:26 And the day following, he shewed himself to them when they were at strife and would have reconciled them in peace, saying: Men, ye are brethren. Why hurt you one another?

sword

2 Samuel 11:25 And David said to the messenger: Thus shalt thou say to Joab: Let not this thing discourage thee: for various is the event of war: and sometimes one, sometimes another is consumed by the sword: encourage thy warriors against the city, and exhort them that thou mayest overthrow it.

Isaiah 1:20 But if you will not, and will provoke me to wrath: the sword shall devour you because the mouth of the Lord hath spoken it.

Jeremiah 2:30 In vain have I struck your children, they have not received correction: your sword hath devoured your prophets, your generation is like a ravaging lion.

Jeremiah 12:12 The spoilers are come upon all the ways of the wilderness, for the sword of the Lord shall devour from one end of the land to the other end thereof: there is no peace for all flesh.

Jeremiah 46:10,14 For this is the day of the Lord the God of hosts, a day of vengeance, that he may revenge himself of his enemies: the sword shall devour, and shall be filled, and shall be drunk with their blood: for there is a sacrifice of the Lord God of hosts in the north country, by the river Euphrates. . . .

Hosea 11:6 The sword hath begun in his cities, and it shall consume his chosen men, and shall devour their heads.

it will be

2 Samuel 2:16 And every one catching his fellow by the head, thrust his sword into the side of his adversary, and they fell down together: and the name of the place was called: The field of the valiant, in Gabaon.

Proverbs 17:14 The beginning of quarrels is as when one letteth out water: and before he suffereth reproach, he forsaketh judgment.

how long

Job 18:2 How long will you throw out words? understand first, and so let us speak.

Job 19:2 How long do you afflict my soul, and break me in pieces with words?

Psalm 4:2 O ye sons of men, how long will you be dull of heart? why do you love vanity, and seek after lying?

Jeremiah 4:21 How long shall I see men fleeing away, how long shall I hear the sound of the trumpet?