1 Chronicles 6:23 lists three generations in a family line: Elkanah, his son Ebiasaph, and his son Assir. This verse is part of a genealogy tracing the descendants of Levi, focusing on the priestly families.
The book of 1 Chronicles was written to record the history and lineage of Israel, especially the tribes and families with special religious duties. In this section, the writer is listing the ancestors of the Levites, who served in the temple. Naming Elkanah, Ebiasaph, and Assir helps establish the family connections and the legitimacy of their roles in Israel’s worship life.