History of the Peloponnesian War

Thucydides

Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.

And though the Lacedaemonians had made up their own minds on the fact of the breach of the treaty and the guilt of the Athenians, yet they sent to Delphi and inquired of the god whether it would be well with them if they went to war; and, as it is reported, received from him the answer that if they put their whole strength into the war, victory would be theirs, and the promise that he himself would be with them, whether invoked or uninvoked.