The more spiritual a child of God becomes the more he is conscious of the significance of walking according to
the spirit and the dangers of walking according to the flesh. But how is he actually to walk by the spirit? The
answer given in Romans 8 is to mind the spirit and to possess a spiritual mind: “they that are after the flesh mind
the things of the flesh; but they that are after the Spirit the things of the Spirit. For the mind of the flesh is
death; but the mind of the Spirit is life and peace” (vv. 5-6 ASV). To walk after the spirit means to have the mind
set on the things of the spirit; it also means to have the spirit rule the mind. Those who act according to the
spirit are none other than those who are occupied with the things of the inner man and whose mind is therefore
spiritual. Walking by the spirit simply denotes that a mind under the control of the spirit sets itself on the things
of the spirit. This implies that our mentality has been renewed and has become spirit-controlled and thus qualified
to detect every movement and silence of the spirit.
