This is David looking back over the past powerful presence of Almighty God who led his people out of Egypt and created a nation that would love and serve him. He focuses specifically on the the story of old patriarchs of the faith from Abraham through Moses and all of the history that took them into and out of Egypt. It was good enough for the Hebrew children as Mahalia Jackson sang. It is nice to be able to look back and see the faithfulness of the generations that allows us to be where we are. We are especially blessed at First Presbyterian to be able to look back over 180 years and see that faithfulness play itself out.