The son of Abishua, the son of Phinehas, the son of Eleazar, the son of Aaron the chief priest:
This is a lineage description: Aaron's grandson through Eleazar, Phinehas, and Abishua. Simplified version: Descendant of Aaron, through Eleazar, Phinehas, and Abishua.
* Work in progress - there may be occasional inaccuracies