2 Samuel 23:8
These be the names of the mighty men whom David had: The Tachmonite that sat in the seat, chief among the captains; the same was Adino the Eznite: he lift up his spear against eight hundred, whom he slew at one time.
Cross-reference
2 Samuel 10:7 mentions David sending 'the mighty men' as a unit, providing context for the group to which this warrior belonged.
2 Samuel 17:8 describes David's men as fierce mighty men like a bear robbed of cubs, explaining their reputation.
1 Chronicles 11:11 gives a parallel account of this mighty man, naming him Jashobeam and recording 300 slain instead of 800.
1 Chronicles 11:12 continues the list with Eleazar the son of Dodo, the next mighty man after the chief.
In 1 Chronicles 11:10, this same list of David's mighty men begins, with parallel wording and content, confirming Josheb-Basshebeth's leadership.
In 1 Kings 1:8, the same 'mighty men' of David are listed as loyal to him during Adonijah's rebellion, showing continuity of this group.