1 Chronicles 11:11

11This is an account of David’s mighty men: aJashobeam, a bHachmonite, was cchief of the three.
Compare 2 Samuel 23:8; Hebrew thirty, or captains
He wielded his spear against 300 whom he killed at one time.

1 Chronicles 11:20

20Now Abishai, the brother of Joab, was chief of the thirty.
Syriac; Hebrew three
And he wielded his spear against 300 men and killed them and won a name beside the three.
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