John Wesley on 1 Chronicles 26:6

Of valour - This clause is divers times mentioned, because their office required both strength and courage: for they were to shut the doors of the temple, one whereof was so great and weighty, that in the second temple it required twenty men to open and shut it. They were also to keep the guard, to keep out all unclean or forbidden persons, to prevent or suppress any tumults or disorders which might happen in the temple or in its courts, to keep the treasures of the temple, ver.20,22,24,26, to be officers and judges over Israel, ver.29, and to manage every matter pertaining to God, and the affairs of the king, ver.32.