2 Samuel 17:25

Absalom set Amasa over the army in place of Joab. Now Amasa was the son of a man whose name was Ithra the Israelite, who went in to Abigail the daughter of Nahash, sister of Zeruiah, Joab’s mother.

2 Samuel 19:13

Say to Amasa, ‘Are you not my bone and my flesh? May God do so to me, and more also, if you will not be commander of the army before me continually in place of Joab.’”

2 Samuel 20:9-12

Joab said to Amasa, “Is it well with you, my brother?” And Joab took Amasa by the beard with his right hand to kiss him.

1 Chronicles 2:13

and Jesse became the father of Eliab his firstborn, then Abinadab the second, Shimea the third,

2 Samuel 20:4

Then the king said to Amasa, “Call out the men of Judah for me within three days, and be present here yourself.”

1 Kings 2:5

“Now you also know what Joab the son of Zeruiah did to me, what he did to the two commanders of the armies of Israel, to Abner the son of Ner, and to Amasa the son of Jether, whom he killed; he also shed the blood of war in peace. And he put the blood of war on his belt about his waist, and on his sandals on his feet.

1 Kings 2:32

The Lord will return his blood on his own head, because he fell upon two men more righteous and better than he and killed them with the sword, while my father David did not know it: Abner the son of Ner, commander of the army of Israel, and Amasa the son of Jether, commander of the army of Judah.

1 Chronicles 2:16-17

and their sisters were Zeruiah and Abigail. And the three sons of Zeruiah were Abshai, 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 became the father of Eliab his firstborn, then Abinadab the second, Shimea the third,

General references

2 Samuel 20:12
But Amasa lay wallowing in his blood in the middle of the highway. And when the man saw that all the people stood still, he removed Amasa from the highway into the field and threw a garment over him when he saw that everyone who came by him stood still.