When they defied the Philistines that were there gathered - This is supposed to refer to the war in which David slew Goliath.

And after him was Eleazar the son of Dodo the Ahohite,.... Or the son of Ahohi, perhaps the same with Ahoah, a descendant of Benjamin, Ch1 8:4; this Eleazar was the next to the Tachmonite, the second worthy of the first class:

one of the three mighty men with David; the second of the three valiant men that were with David in his wars, and fought with him, and for him:

when they defied the Philistines; clapped their hands at them, gloried over them, daring them to come and light them; so did David and his mighty men, as Goliath had defied them before:

that were there gathered together to battle; at Pasdammim, as appears from Ch1 11:13,

and the men of Israel were gone away; fled when they saw the Philistines gather together to fight them, notwithstanding they had defied them; and so David, and his three mighty men, were left alone to combat with the Philistines.