Pretty stellar stuff here -- gospel with Elvis. His roots were deep in the gospel tradition, and his success was largely due to his ability to sing in "black" styles while being socially acceptable to the white audience of the day. Race has defined America in so many ways; this recording is well-suited to meditate on.
Also, take a listen to all the unison used, and the way things are arranged. The piano licks are also quite perfectly suited. Listen for the bass voice occasionally peeking out! Good stylistic lessons here.