New Revised Standard Version
Abishai son of Zeruiah killed eighteen thousand Edomites in the Valley of Salt.

Contemporary English Version
Abishai the son of Zeruiah defeated the Edomite army in Salt Valley and killed 18,000 of their troops.

New American Bible
Abishai, the son of Zeruiah, also defeated eighteen thousand Edomites in the Valley of Salt.

Douay-Rheims Bible
And Abisai the son of Sarvia slew of the Edomites in the vale of the saltpits, eighteen thousand:

And Abisai the son of Sarvia slew of the Edomites in the vale of the saltpits, eighteen thousand:

Moreover

1 Chronicles 2:16 And their sisters were Sarvia, and Abigail. The sons of Sarvia: Abisai, Joab, and Asael, three.

1 Chronicles 11:20 And Abisai the brother of Joab, he was chief of three, and he lifted up his spear against three hundred whom he slew, and he was renowned among the three,

1 Samuel 26:6,8 David spoke to Achimelech, the Hethite, and Abisai, the son of Sarvia, the brother of Joab, saying: Who will go down with me to Saul into the camp? And Abisai said: I will go with thee. . . .

1 Samuel 10:10,14 And they came to the foresaid hill, and behold a company of prophets met him: and the Spirit of the Lord came upon him, and he prophesied in the midst of them. . . .

1 Samuel 16:9-11 And Isai brought Samma, and he said of him: Neither hath the Lord chosen this. . . .

1 Samuel 19:21,22 And when this was told Saul, he sent other messengers: but they also prophesied. And again Saul sent messengers the third time: and they prophesied also. And Saul being exceeding angry, . . .

1 Samuel 20:6 If thy father look and inquire for me, thou shalt answer him: David asked me that he might run to Bethlehem, his own city: because there are solemn sacrifices there for all of his tribe.

1 Samuel 23:18 And they two made a covenant before the Lord: and David abode in the wood: but Jonathan returned to his house.

Abishai [heb] Abshai

1 Chronicles 19:11 And the rest of the people he delivered into the hand of Abisai his brother, and they went against the children of Ammon.

slew of the Edomites

2 Samuel 7:13 He shall build a house to my name, and I will establish the throne of his kingdom fore ever.

2 Samuel 8:13,14 David also made himself a name, when he returned after taking Syria in the valley of the saltpits, killing eighteen thousand: . . .

Psalm 60:1,8,9 Unto the end, for them that shall be changed, for the inscription of a title, to David himself, for doctrine, [2] When he set fire to Mesopotamia of Syria and Sobal: and Joab returned and slew of Edom, in the vale of the saltpits, twelve thousand men. [3] O God, thou hast cast us off, and hast destroyed us; thou hast been angry, and hast had mercy on us. . . .

the valley of Salt

2 Kings 14:7 He slew of Edom in the valley of the Saltpits, ten thousand men, and took the rock by war, and called the name thereof Jectehel, unto this day.

2 Chronicles 25:11 And Amasias taking courage led forth his people, and went to the vale of saltpits, and slew of the children of Seir ten thousand.