Timoleon

and when he saw that they were unable to come to close quarters with the Carthaginians on account of the chariots which coursed up and down in front of their lines, but were forced to wheel about continually that their ranks might not be broken, and to make their charges in quick succession after facing about again, he took up his shield and shouted to his infantrymen to follow and be of good courage;

and his voice seemed stronger than usual and more than human, whether it was from emotion that he made it so loud, in view of the struggle and the enthusiasm which it inspired, or whether, as most felt at the time, some deity joined in his utterance.