Are Christians throughout time, before the return of Christ, to anoint the sick with oil to bring about healing? After all, it is a practice common to Christendom even when Christians don’t believe there is a promise of healing tied to the practice. Roman Catholics, Lutherans, Eastern Orthodox, Anglicans, Charismatics, and various forms of the most Fundamentalist Christians (yes, even some Plymouth Brethren) all do it with various degrees of expectation (or not). The early Disciples did it (Mark 6:13) and James 5:14, the text in question, seems to command it.
Is anyone among you sick? Then he must call for the elders of the church and they are to pray over him, anointing him with oil in the name of the Lord;
Notice that it’s not a finished thought. The sentence carries the topic down to verse 20. Because of that, I’m going to take this piece-meal, asking questions, and often looking at the context.