Commentaries:
Barnes' Notes
Sisters - i. e. half-sisters. Abigail and Zeruiah were daughters not of Jesse, but of a certain Nahash, whose widow Jesse took to wife II Samuel 17:25.
From the present passage, and from the fact that Abishai joined David as a comrade in arms before Joab I Samuel 26:6, it would seem that, although Joab was pre-eminent among the three II Samuel 2:13, II Samuel 2:16, Abishai was the eldest.
Other Barnes' Notes entries containing 1 Chronicles 2:16:
1 Samuel 11:1
2 Samuel 17:25
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