Here is a quote from Jessie Penn-Lewis (The Centrality of the Cross, ch. 5). The Lord used her writing in the era of the Welch revival and beyond.

In Dr. Andrew Murray’s Spirit of Christ, he gives in the Appendix a very clear explanation of the dividing of soul and spirit which has to be done in the believer. He explains how man fell from the ‘spirit’ dominating his whole being, into the soul, and then again how the soul sank down into the flesh, so that at last God said of man “He is become flesh.” He descended from spirit to soul, and from soul to ‘flesh’. The spirit of man, says Dr. Murray, is that in us which is capable of knowing God-spirit-consciousness. The soul is the seat of the self-consciousness, and the body the seat of sense consciousness. An understanding of simple Bible psychology is necessary for any apprehension of the full life of victory through the atoning work of our Lord Jesus Christ. There is more to be dealt with in us than what we call ‘sin’, and more than ‘sin’ which prevents our full knowledge of God.