Why did Churchill make such a victorious speech in the middle of the Battle of Britain and not at the end?

To bring the Morale up for the British because there morale was low because France was out of the war.I wouldn't say victorious but a he made a patriotic speech.

Explanation:

religion played a major role in the american revolution by offering a moral sanction for opposition to the british--an assurance to the average american that revolution was justified in the sight of god. the revolution strengthened millennialist strains in american.