1 Chronicles 6:28

“the sons of Samuel--The sons of Samuel are here named Vashni and Abiah. The first-born is called Joel (Sa1 8:2); and this name is given to him in Ch1 6:33. It is now generally thought by the best critics that, through an error of the copyists, an omission has been made of the oldest son's name, and that Vashni, which is not the name of a person, merely signifies "and the second." This critical emendation of the text makes all clear, as well as consistent with other passages relating to the family of Samuel.”

“Vashni - The true name of Samuel’s first-born, which was “Joel” (see the margin and references), has here dropped out; and the word properly meaning “and his second (son)” has been taken as the name of the first. return to 'Top of Page'”

“firstborn: Ch1 5:1; Lev 27:26; Gen 14:20; Here there is an ellipsis of the name of the firstborn, which the margin correctly supplies as Joel. The word Vashni when otherwise pointed means "second," so that the verse more properly reads "And the sons of Samuel; the firstborn (Joel) and the second Abiah." Vashni: i.e. Jah is strong; wherefore, sleep thou; changed; my year; second; liberal gift of the Lord, \[Strong's H2059\]. It appears that the Joel is here lost out of the text; and that washni, which signifies "and the second," and which refers to Abiah, is made into a proper name. The Syriac and Arabic read as in Samuel. The marginal references contain the variation in the names given to…”