Ab urbe condita
Titus Livius (Livy)
Livy. History of Rome, Volumes 1-2. Roberts, Canon, Rev, translator. London, New York: J. M. Dent and Sons; E. P. Dutton and Co., 1912.
So after gradually working up the leaders of the Gabinians to revolt, he went in person with some of the most eager of the young men on foraging and plundering expeditions. By playing the hypocrite both in speech and action, he gained their mistaken confidence more and more; at last he was chosen as commander in the war.
Whilst the mass of the population were unaware of what was intended, skirmishes took place between Rome and Gabii in which the advantage generally rested with the latter, until the Gabinians from the highest to the lowest firmly believed that Sextus Tarquin had been sent by heaven to be their leader.
As for the soldiers, he became so endeared to them by sharing all their toils and dangers, and by a lavish distribution of the plunder, that the elder Tarquin was not more powerful in Rome than his son was in Gabii.