The authorities at Delphi seem to have read the coming invasion in the light of a tremendous punitive expedition against Athens, a revenge for Marathon and Sardes. H. vii. 138. It has already been shown on the evidence of Herodotus that these were the declared reasons of the expedition. Believing this to be the case, it required no great imaginative powers with respect to the future to foretell the destruction of Attica. Hence the first of the two celebrated oracles which caused the Athenian delegates such natural alarm. The Athenians are told to fly to the ends of the earth, and the utter destruction of their Greek home is foretold.

It was to Athens alone that such advice was given. Athens was the object of the expedition, so Delphi thought; and if the object were removed, the invasion might never take place. In any case, if it did take place, it was possible that its object might be regarded as attained if Attica and Athens were laid waste; and therefore it was necessary, in consistency with this view, to discourage the interference of the Greek States in the matter. H. vii 148. This is the reason for the advice given to Argos and to the Cretans. H. vii. 169. If other States interfered the devastation might spread to the whole of Greece.

It is quite conceivable that Delphi regarded this as being, under the circumstances, the most patriotic policy which could be advocated. The removal of the cause of offence would go far towards expiating the offence itself. Such a course of action was in a way parallel to that demanded by one Greek State from another in a case of sacrilegious pollution.

Two questions now arise. In the first place, at what period in the development of affairs prior to the invasion was this oracular response delivered to the Athenians? Secondly, what interval elapsed between it and the second? The first question hardly admits of an answer. The wording of the oracle affords but a slender and uncertain clue; and that, such as it is, is contained in the latter half of it. The answer, as given in Herodotus, is in twelve lines of verse. H. vii. 140. Of these the first six refer to Athens alone. The last six, however, extend the threat of destruction to other States of Greece. And yet the inhabitants of those States are not advised to fly their land; the exhortation to flight is addressed to Athens alone. If these words were dictated by circumstances existent at the time they were spoken, they can only be of the nature of a threat addressed to the other powers of Greece; and, if so, they were probably uttered either during the expedition to Tempe, or immediately after it, and were a warning of what would happen to those who tried to resist the invader.

A further possibility is that the last six lines appeared in a revised version of the original, made after the event.

Herodotus’ account of the delivery of the second oracle gives the impression that he supposed this to have been spoken immediately after the first. The tale is a curious one, and discloses an attitude of mind among the Greeks of that time to which no distinctly traceable counterpart could be found at the present day. The demand for the prophecy of smooth things, though sometimes raised even in our own times, does not, if fulfilled, convey much comfort to the modern mind; and such comfort as might be given could hardly be heightened by the fact that the prophecy had been previously arranged. That was palpably the case in this instance.

Herodotus tells the tale much as follows:⁠—

The Athenian delegates, he says, were exceedingly depressed by the first answer they had received. While they were in this state, Timon the son of Androboulos, a man in the highest repute at Delphi, came to them and suggested they should go again and consult the oracle as suppliants. When people in Timon’s position make such suggestions, it may be presumed that they are acting upon knowledge. It may even be suspected that there was something in the previous answer which the authorities were anxious to amend.

There are two features in the second oracle which are of the nature of a forecast of events: the advice as to the reliance to be placed on the defence of the wooden walls, and the purely prophetic reference to Salamis. The first of these may be, probably is, a part of the original utterance; the second, contained in the last two lines, is probably an addition after the event, unless, which is improbable, Themistocles influenced the wording of the answer. The first may be possibly conceived as having brought about its own fulfilment; the second refers to a measure which is unanimously attributed to the genius of Themistocles.

But the most remarkable feature of the whole is the absence of any reference to a flight to the ends of the earth, the essential and most striking feature of the first response. The Athenians are indeed told that they must abandon their country; but all reference to an abandonment of Greece is conspicuously omitted.