'Mighty men' in the Bible

After him Nehemiah the son of Azbuk, the ruler of the half part of Beth-zur, repaired across from the tombs of David, and to the pool that was made, and to the house of the mighty men.

All the sons of Perez who lived in Jerusalem were four hundred and sixty-eight mighty men.

and their brothers, mighty men of power, were a hundred and twenty-eight. And their overseer was Zabdiel, the son of one of the great men.