2 Samuel 2:16

Overview - 2 Samuel 2
David, by God's direction, with his company goes up to Hebron, where he is made king of Judah.
He commends them of Jabesh-gilead for their kindness to Saul.
Abner makes Ishbosheth king of Israel.
12 A mortal skirmish between twelve of Abner's and twelve of Joab's men.
18 Asahel is slain.
25 At Abner's motion, Joab sounds a retreat.
32 Asahel's burial.
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2 Samuel 2:16  (King James Version)
And they caught every one his fellow by the head, and thrust his sword in his fellow's side; so they fell down together: wherefore that place was called Helkathhazzurim, which is in Gibeon.

by the head
Probably by the beard or hair of the head. Plutarch, in his Apophthegms, informs us, that all things being ready for a battle, Alexander's captains asked him whether he had any thing else to command them. "Nothing," said he, "but that the Macedonians shave their beards." Parmenio wondering what he meant, "Dost thou not know," said he, "that in fight, there is no better hold than the beard?"

that is, the field of strong men.