'Mighty men' in the Bible

Now these [were] the heads of their fathers' households: Epher, Ishi, Eliel, Azriel, Jeremiah, Hodaviah, and Jahdiel, mighty men of strength, {famous men}, heads of their fathers' households.

and their kinsmen, heads of the house of their fathers, one thousand seven hundred and sixty mighty men [for] the work of the service of the house of God.

Now these [are] the chiefs of the mighty men who [were] for David, who gave him strong support in his kingdom, together with all Israel to make him king according to the word of Yahweh concerning Israel.

And he said, "Far be it from me [that] I would do this before my God. Shall I drink the lifeblood of these men? For {at the risk of their lives} they brought it." And he was not willing to drink it. These things the three mighty men did.

And they themselves helped David against the troops, for all of them [were] mighty men of strength and were commanders in the army.

Look! [It is] Solomon's {portable couch}! Sixty mighty men surround {it}, the mighty men of Israel.