1 Tawarikh 6:28

6:28 The sons of Samuel:

Joel the firstborn ¹  and Abijah the second oldest.

1 Tawarikh 24:31

24:31 Just like their relatives, the descendants of Aaron, they also cast lots before King David, Zadok, Ahimelech, the leaders of families, the priests, and the Levites. The families of the oldest son cast lots along with the those of the youngest. ² 

[6:28]  ¹ tc The Hebrew text lacks the name יוֹאֵל (yo’el, “Joel”), which has probably dropped out due to homoioteleuton (note the last three letters of the preceding name שְׁמוּאֵל (shÿmuel, “Samuel”).

[24:31]  ² tn Heb “the fathers [i.e., families] of the head [i.e., oldest] just like his youngest brother.”