Contradiction with 1 Chronicles 6:28
The sons listed in this verse are different from those in 1 Chronicles 24:27.
1 Chronicles 6:28: And the sons of Samuel; the firstborn Vashni, and Abiah. [Vashni: called also Joel]
Contradiction with 1 Samuel 8:2
The positions and responsibilities of sons differ from those mentioned in 1 Chronicles 24:27.
1 Samuel 8:2: Now the name of his firstborn was Joel; and the name of his second, Abiah: [they were] judges in Beersheba.
Contradiction with 1 Kings 4:31
The wisdom and roles contrast with the roles in 1 Chronicles 24:27.
1 Kings 4:31: For he was wiser than all men; than Ethan the Ezrahite, and Heman, and Chalcol, and Darda, the sons of Mahol: and his fame was in all nations round about.