John Gill Commentary 2 Samuel 23:27

"Abiezer the Anathothite, Mebunnai the Hushathite," — 2 Samuel 23:27 (ASV)

Abiezer the Anethothite
He was of Anathoth, in the tribe of Benjamin, (Joshua 21:18) , the birthplace of Jeremiah the prophet, (Jeremiah 1:1) :

Mebunnai the Hushathite ;
the same with Sibbecai, (1 Chronicles 11:29) (27:11) (2 Samuel 21:18) ; this man had two names, and was a descendant of Hushah, who came of Judah, (1 Chronicles 4:4) .