Popular gospel from 1929 by Albert E. Brumley. One of the most recorded religious hymns. A beautiful version of it included in the „ O Brother where art thou ?“ movie soundtrack, brilliantly sung by Gillian Welch and Allison Krauss.
A nice four liner, simple harmonies, straightforward melody. Can also be accompanied by strumming, my preferred pattern would be 1_2+3+4_ (down_down up down up_down).