Joab his son, Addi his son, Zara his son, Jethri his son.
LXX
1 Chronicles 6:21
the son of Helcana, the son of Joel, the son of Azarias, the son of Japhanias,
Parallel Translations
Joah his son, Iddo his son, Zerah his son, Jeaterai his son.
Joah his son, Iddo his son, Zerah his son, and Jeatherai his son.