Following are a number of back-translations as well as a sample translation for translators of 2 Samuel 23:18:

• Kupsabiny: “The leader of the thirty courageous/fierce soldiers was Abishai who was the brother of Joab. Abishai’s mother was called Zeruiah. One day, Abishai fought with three hundred men until he killed all of them with his spear. Then, Abishai, too, became well-known/famous but his fame did not surpass that of those other three men.” (Source: Kupsabiny Back Translation)
• Newari: “Abishai younger brother of Joab son of Zeruiah was the chief of those thirty. Once he killed three hundred [men] with a spear, so he became a famous man, like the three.” (Source: Newari Back Translation)
• Hiligaynon: “Abishai the sibling of Joab, the child of Zeruiah was the leader/[lit. head] of the thirty mighty men of David. He was-able-to-kill three hundred Filistinhon by his spear. So he became famous like those three mighty men.” (Source: Hiligaynon Back Translation)
• English: “Abishai, Joab’s younger brother, was the leader of the 30 greatest warriors. One day he fought against 300 men and killed them all with his spear. As a result, he also became famous.” (Source: Translation for Translators)