Saint Michael according to The Golden Legend

The Victories of St. Michael

Secondly, this solemnity of St. Michael is said victory, and the victory of St. Michael is manifold. And also of other angels.

The Victory of the Christians of Sipontus

The first is that St. Michael gave to them of Syponte in this manner.

After a certain time that the place was found, they of Naples were yet paynims [pagans], and ordained their host for to fight against them of Syponte and Benevento.

And by the counsel of the bishop, the Christian men took truce for three days that they might fast those three days and require their patron St. Michael unto their aid and help.

In the third night the holy St. Michael appeared to the said bishop and said that their prayers were heard, and promised them to have victory, and commanded them to run on their enemies at the fourth hour of the day without more tarrying.

And when they ran against them the mountain of Gargan began strongly to tremble and a great tempest arose, so that lightning flew about and a dark cloud covered the mountain, so that six hundred of their adversaries died of the fiery arrows which came from the air.

And all the residue of them that were not slain left their idolatry and submitted them anon to the Christian faith.