Exodus 15:9

The enemy said, I will pursue, I will overtake, I will divide the spoil; my lust shall be satisfied upon them, my soul will get its fill of them; I will draw my sword, my hand shall destroy them. The short sentences, hardly more than exclamations, vividly paint the certainty of victory which possessed the hearts of the Egyptians as they went forth in the overweening pride of confidence.

And Moses spake unto Aaron, Say unto all the congregation of the children of Israel, Come near before the Lord; for He hath heard your murmurings. Aaron, as the spokesman of Moses, was to make this announcement, giving the people the assurance that Jehovah had heard, and was ready to grant, the prayer included in their murmuring, in spite of the fact that it indicated a sinful weakness on their part.