1 Chronicles 24:3

And David, with Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, made distribution of them into their positions for their work.

2 Samuel 8:17

And Zadok and Abiathar, the son of Ahimelech, the son of Ahitub, were priests; and Seraiah was the scribe;

1 Chronicles 24:31

Selection was made of these in the same way as of their brothers the sons of Aaron, David the king being present, with Zadok, and Ahimelech, and the heads of families of the priests and of the Levites; the families of the chief in the same way as those of his younger brother.

1 Samuel 21:1

Then David came to Nob, to Ahimelech the priest: and Ahimelech was full of fear at meeting David, and said to him, Why are you by yourself, having no man with you?

1 Samuel 22:9-23

Then Doeg, the Edomite, who was by the side of the servants of Saul, in answer said, I saw the son of Jesse coming to Nob, to Ahimelech, the son of Ahitub.

2 Samuel 20:25

And Sheva was the scribe, and Zadok and Abiathar were priests;

1 Kings 2:35

And the king put Benaiah, the son of Jehoiada, in his place over the army; and Zadok the priest he put in the place of Abiathar.

1 Chronicles 6:4-8

Eleazar was the father of Phinehas; Phinehas was the father of Abishua;

1 Chronicles 6:50-53

And these are the sons of Aaron: Eleazar his son, Phinehas his son, Abishua his son,

1 Chronicles 12:27-28

And Jehoiada, chief of the family of Aaron, and with him three thousand, seven hundred men;

1 Chronicles 15:11

And David sent for Zadok and Abiathar the priests, and for the Levites, Uriel, Asaiah and Joel, Shemaiah and Eliel and Amminadab,

1 Chronicles 16:39

And Zadok the priest, with his brothers the priests, before the House of the Lord in the high place at Gibeon;

1 Chronicles 24:6

And Shemaiah, the son of Nethanel the scribe, who was a Levite, put down their names in writing, the king being present with the rulers, and Zadok the priest, and Ahimelech, the son of Abiathar, and the heads of families of the priests and the Levites; one family being taken for Eleazar and then one for Ithamar, and so on.

Treasury of Scripture Knowledge

Summary

And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service.

Bible References

Ahimelech

1 Samuel 21:1
Then David came to Nob, to Ahimelech the priest: and Ahimelech was full of fear at meeting David, and said to him, Why are you by yourself, having no man with you?
1 Samuel 22:9
Then Doeg, the Edomite, who was by the side of the servants of Saul, in answer said, I saw the son of Jesse coming to Nob, to Ahimelech, the son of Ahitub.
2 Samuel 8:17
And Zadok and Abiathar, the son of Ahimelech, the son of Ahitub, were priests; and Seraiah was the scribe;

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain