'Acts' in the Bible

O Lord God, you have now for the first time let your servant see your great power and the strength of your hand; for what god is there in heaven or on earth able to do such great works and such acts of power?

Has God ever before taken a nation for himself from out of another nation, by punishments and signs and wonders, by war and by a strong hand and a stretched-out arm and great acts of wonder and fear, as the Lord your God did for you in Egypt, before your very eyes?

And in all the acts of power and fear which Moses did before the eyes of all Israel.