A good Gospel song that dwells on the past work of God in one's life is entitled "Amazing." It's written by Hezekiah Walker and Stephanie Olpacio, and sung by the former. The song is straight-forward and has a call-and-response portion. In my opinion, it's best led with strong vocal harmonies and a leader that can improvise. Lyrics are below:
It’s so amazing (it’s so amazing)
Your love for me (your love for me)
It’s so amazing (it’s so amazing)
Your sacrifice for me
For every blessing (for every blessing)
Given to me (given to me)
For every valley (for every valley)
You used to strengthen me
I don’t deserve your love
Your tender mercy
If not for your grace where would I be!
I stand amazed at your glory.
I stand amazed at your strength.
I stand amazed at your power
So amazing, amazing