I grew up singing this song in rural Pentecostal churches in the late 60's and early 70's. It was always VERY uptempo and usually was sung at the climax of services when folks were jumpin' around and doing all that stuff that caused Pentecostals to be called "Holy Rollers." I've trolled the internet for recordings, but none of them can remotely touch the energy of the way those churches did it. We definitely weren't serpent handlers, but the music in this clip (http://www.youtube.com/watch?v=vMP-CQ_bvSM) gets at the general sound.