Q: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
The song's lyrics refer to the Christian concept of the anticipation of restoration and reward, and reference the motifs found at Revelation 22: 1-2-a crystal clear river with water of life, issuing from the throne of heaven, all presented by an angel of God.
A:
story behind shall we gather at the river