Eleazar was the father of Phinehas, Phinehas was the father of Abishua,
The priests and Levites were more concerned than any other Israelites to preserve their pedigree clear and to be able to prove it, because all the honours and privileges of their office depended upon their descent. And we read of those who, though perhaps they really were children of the priests, yet, because they could not find the register of their genealogies, nor make out...
Commenting on 1 Chronicles 6:1-30
And the God of Israel stirred up the spirit of Pul king of Assyria, and the spirit of Tilgathpilneser king of Assyria, and he carried them away, even the Reubenites, and the Gadites, and the half tribe of Manasseh, and brought them unto Halah, and Habor, and Hara, and to the river Gozan, unto this day.
Commenting on 1 Chronicles 6:1-7
Eleazar begat Phinehas - As the high priesthood continued in this family for a long time, the sacred historian confines himself to this chiefly, omitting Nadab and Abihu, and even the family of Ithamar.