2 Samuel 17:25

And Absalom put Amasa at the head of the army in place of Joab. Now Amasa was the son of a man named Ithra the Ishmaelite, who had been the lover of Abigail, the daughter of Jesse, sister of Zeruiah, Joab's mother.

2 Samuel 19:13

And say to Amasa, Are you not my bone and my flesh? May God's punishment be on me, if I do not make you chief of the army before me at all times in place of Joab!

2 Samuel 20:9-12

And Joab said to Amasa, Is it well, my brother? And with his right hand he took him by the hair of his chin to give him a kiss.

1 Chronicles 2:13

And Jesse was the father of Eliab, his oldest son, and Abinadab, the second, and Shimea, the third,

2 Samuel 20:4

Then the king said to Amasa, Get all the men of Judah together, and in three days be here yourself.

1 Kings 2:5

Now you have knowledge of what Joab, the son of Zeruiah, did to me, and to the two captains of the army of Israel, Abner, the son of Ner, and Amasa, the son of Jether, whom he put to death, taking payment for the blood of war in time of peace, and making the band of my clothing and the shoes on my feet red with the blood of one put to death without cause.

1 Kings 2:32

And the Lord will send back his blood on his head, because of the attack he made on two men more upright and better than himself, putting them to the sword without my father's knowledge; even Abner, the son of Ner, captain of the army of Israel, and Amasa, the son of Jether, captain of the army of Judah.

1 Chronicles 2:16-17

And their sisters were Zeruiah and Abigail. And Zeruiah had three sons: Abishai and 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 was the father of Eliab, his oldest son, and Abinadab, the second, and Shimea, the third,

General references

2 Samuel 20:12
And Amasa was stretched out in a pool of blood in the middle of the highway. And when the man saw that all the people were stopping, he took Amasa out of the highway and put him in a field, with a cloth over him, when he saw that everyone who went by came to a stop.

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