'Great Things' in the Bible

Only fear Jehovah, and serve him in truth with all your heart; for consider how great things he hath done for you.

And he did great things, and overcame the Amalekites, and made Israel safe from the hands of their attackers.

And Saul said to David, Blessed be thou, my son David: thou shalt certainly do great things, and shalt certainly prevail. And David went on his way, and Saul returned to his place.