Ptolemy, since the power was not yet in his hands, was compelled to submit, and to postpone gratifying the spirit of vengeance which had so long been slumbering in his breast to a future day.

He could the more patiently submit to this necessity, since it appeared that the day of his complete and final triumph over his daughter and all her adherents was now very nigh at hand.
In fact, Berenice and her government, when they heard of the arrival of Antony and Ptolemy at Pelusium, of the fall of that city, and of the approach of Gabinius with an overwhelming force of Roman soldiers, were struck with dismay.

Archelaus, the husband of Berenice, had been, in former years, a personal friend of Antony's.

Antony considered, in fact, that they were friends still, though required by what the historian calls their duty to fight each other for the possession of the kingdom.
The government of Berenice raised an army.

Archelaus took command of it, and advanced to meet the enemy.