We add: "He will come in a hurry," and "Call him up, call him up," and "If you need more power." It's common practice to improvise lines, too. When Joe's back was killing him, I sang, "If your back is bothering you." Like many black gospel songs, there is no accepted "text." There are just the words that someone sang when they recorded the song. Use you imagination.. "If your lost, can't find your way," or whatever comes to mind.
When my wife Ruth and I go out to visit my family in Wisconsin we always go to a black Baptist Church in a neighboring town and they never fail to sing this song as one of the songs they sing, warming up the church for the service. We sing it at churches all over the place... a good message with a lot of energy.