Here's the last musical phrase:
The melody here is conjunct (not skipping any notes in the scale), and it gives an impression of the steps involved in the "walk[ing]" mentioned in most of the lines sung to this phrase: "I walk in danger all the way" in the first verse, "I walk with angels all the way" in the fourth, "I walk with Jesus all the way" in the fifth, and "My walk is heav'nward all the way" in the sixth.
