1)
What is "Ben Dodo"?
1.
Rashi and Targum Yonasan (in Shmuel II, 23:9): This is his name.
2)
Why does it say here "ha'Achochi", and in Shmuel II, 23:9, "Ben Achochi"?
1.
Radak (Shmuel II, 23:9): Achochi was the family name. Therefore, it says here Ben Achochi. There it says ha'Achochi, like Ben Kenaz [is called] "ha'Kenizi" (Bamidbar 32:12).
3)
Why does it mention here only two of the three Giborim? All are mentioned in Shmuel II, 23:8-11!
1.
Rashi: These were the strongest.
2.
Radak: Elazar was the third in this war, and he was the head of this war.
