1 Chronicles 2:8 records that Ethan had a son named Azariah. This verse is part of a genealogical list, simply stating the family connection between Ethan and Azariah.
The writer of 1 Chronicles is listing the descendants of Judah for the people of Israel, tracing their ancestry through various family lines. In this verse, the focus is on Ethan, whose son is named Azariah, helping to document the lineage and preserve the names of these individuals for the historical record.