2 Samuel 17:25

And Absalom made Amasa captain of the host instead of Joab; this Amasa was the son of a man of Israel named Ithra, who had gone in to Abigail, the daughter of Nahash, sister to Zeruiah, Joab's mother.

2 Samuel 19:13

Likewise say ye to Amasa, Art thou not of my bone and of my flesh? God do so to me and more also, if thou be not captain of the host before me continually in the place of Joab.

2 Samuel 20:9-12

And Joab said to Amasa, Art thou in peace, my brother? And Joab took Amasa by the beard with the right hand to kiss him.

1 Chronicles 2:13

And Jesse begat his firstborn Eliab, and Abinadab the second and Shimma the third,

2 Samuel 20:4

Then the king said to Amasa, Assemble me the men of Judah for the third day, and be thou here present.

1 Kings 2:5

Moreover thou knowest also what Joab, the son of Zeruiah, did to me and what he did to the two captains of the host of Israel, unto Abner, the son of Ner and unto Amasa, the son of Jether, whom he slew, shedding the blood of war in peace and putting the blood of war upon his girdle that was about his loins and in his shoes that were on his feet.

1 Kings 2:32

And the LORD shall return his blood upon his own head, who fell upon two men more righteous and better than he and slew them with the sword without my father David knowing of it: Abner, the son of Ner, captain of the host of Israel, and Amasa, the son of Jether, captain of the host of Judah.

1 Chronicles 2:16-17

whose sisters were Zeruiah, and Abigail. The sons of Zeruiah were three: Abishai, Joab, and Asahel.

Treasury of Scripture Knowledge

Summary

And Absalom made Amasa captain of the host instead of Joab: which Amasa was a man's son, whose name was Ithra an Israelite, that went in to Abigail the daughter of Nahash, sister to Zeruiah Joab's mother.

General references

Bible References

Nahash

1 Chronicles 2:13
And Jesse begat his firstborn Eliab, and Abinadab the second and Shimma the third,

General references

2 Samuel 20:12
And Amasa had wallowed in blood in the midst of the highway. And when the man saw that all the people stopped, he removed Amasa out of the highway into the field and cast a garment upon him because he saw that every one that came by him stopped.