History of the Peloponnesian War

The Plataean ambassadors having come to the Athenians and consulted with them, returned with the following message to those in the city:

Men of Plataea, the Athenians say, that never in time past, since we became their allies, have they on any occasion deserted us when injured; nor will they neglect us now, but will succour us to the best of their power. And they charge you by the oaths which your fathers swore, to make no innovation in the terms of the alliance.

The ambassadors having delivered this message, they resolved not to prove false to the Athenians, but to endure, it necessary, both to see their land ravaged, and to suffer whatever else might befall them. They resolved also that no one should go out again, but that they should reply from the walls, that it was impossible for them to do as the Lacedaemonians proposed.

When they had given this answer, king Archidamus proceeded in the first place to call to witness the gods and heroes of the country, in these words:

Ye gods and heroes that dwell in the land of Plataea, bear witness that it was neither unjustly in the first instance, but when these men had first broken the agreement they had sworn to, that we came against this land, in which our fathers prayed to you before they conquered the Medes, and which you rendered an auspicious one for the Greeks to contend in; nor shall we act unjustly now, whatever we may do; for though we have made many fair proposals, we have not succeeded in gaining their assent. Grant then that those may be punished for the wrong who were the first to begin it, and that those may obtain their revenge who are lawfully trying to inflict it.