Paul lists characteristics of what this life is like. For example, it is about freedom [5.1, 5.13]. It is about hope [5.5]. It is about faith working through love [5.6]. It is about serving one another [5.13-15]. It is NOT about a huge list of things in 5.19-21.
But what makes all of the above things make sense?
The source of all of these things for Paul is living by the Spirit. The way that the real gospel is really lived out is by the individual believer and the corporate community of faith living according to the Spirit's lead.
Paul even uses four different and powerful Greek verbs to depict how the Spirit should be our Guide and we should be His dependents.
In 5.16, Paul says we must WALK by/in/with the Spirit. This verb isIn 5.25, Paul says that we LIVE by the Spirit. This verb isIn 5.25, Paul says that we must KEEP IN STEP with the Spirit. This verb is