Introduction
  Brief review of setting (MAP) and structure (1-5:12 is argument  defense of Paul’s authority and message about God’s (justifying) grace;  5:13-end is application of God’s grace – the distinctive features and dynamics  of the Christian lifestyle).
  In the application section, the distinctive feature is a loving  lifestyle (5:13,14,22), and the distinctive dynamic of this lifestyle is the  Holy Spirit: “walk by the Spirit” (5:16), “keep in step with the Spirit” (5:25);  “sow to the Spirit” (6:8). Christians  tend to either emphasize the Holy Spirit and get weird (“charismania”) or  over-react against weirdness and neglect the Holy Spirit (“Christian  deism”). We need a sane, biblical,  positive emphasis on the Holy Spirit!  That’s what we want to develop over the next three weeks as we study  each of these three phrases.
  This morning we will explore what Paul teaches about walking by  the Spirit (read 5:16-24). Paul teaches  us three truths about walking by the Spirit in this passage, but first we need  to consider a fourth truth taught earlier in Galatians...
Walking by the Spirit requires first receiving the Spirit
  The Holy Spirit is not a spiritual essence or energy that all  humans already have and just need to actualize.  The Holy Spirit is a Person who comes to live in our souls when we place  our faith in Jesus as our Savior (read 3:2; Eph.1:13,14). There is a point in time before which you do  not have the Holy Spirit living within you, and after which you do. That point of time is your decision to admit  to God that you need His forgiveness and to ask Him to forgive you through  Jesus’ death. The moment you make this  decision, God’s Spirit enters your innermost being to make you alive to God (5:25a)  and to enable you to live as God designed.  Have you made this decision? 
  Once you have received the Holy Spirit, then you can begin to learn  how to walk by the Spirit. But we need  to start by learning what walking by the Spirit does not mean. Paul corrects two  common misconceptions...
Walking by the Spirit does not mean the elimination of sinful desires
  Paul corrects the first common misconception in 5:17 (re-read). Walking by the Spirit does not mean the elimination of sinful  desires. Christians are indwelt by the  Holy Spirit, but also still have a sinful nature. The Holy Spirit continues (present tense) to  impart desires for God and His will (see also Phil.2:13; EXAMPLES) and  warnings against following our sinful natures (EXAMPLES). But our sinful natures also continue (present  tense) to impart desires to be selfish (EXAMPLES) and aversion to God and His  will (EXAMPLES).
  This verse helps us to manage our expectations about walking by  the Spirit:
  
    Don’t be freaked out when you have strong fleshly desires well  up within you. This doesn’t mean that  you are unsaved or (necessarily) that you are unspiritual (SPIRITUAL AVERSION  EXAMPLES). It just means that you still  have a fallen nature. Actually,  increasing awareness of this conflict is a sign of spiritual health, while lack  of awareness of it is a sign of spiritual sickness.
    Don’t expect to “break the spiritual sound barrier” in this  life, after which everything is harmonious within your soul. Sometimes Christians claim to have achieved  this through prayer and fasting or other spiritual disciplines – but this will  not happen until Jesus returns and we receive new bodies without sinful natures  (Rom.7:24; 8:23). Rather, expect  to experience increasing freedom from following our sinful natures’ desires (5:19-21,24),  and increasing freedom to follow the Spirit’s desires (5:22,23). 
  
Walking by the Spirit is not merely exercising will-power to obey God’s law
  Many religions teach that moral will-power is the key to a  spiritual life (CONFUCIANISM; BUDDHISM; PHARISAIC JUDAISM). Many churches teach this same thing (JUDAIZERS;  REFORMED 3RD USE OF THE LAW).  We call this the “DIRECT APPROACH” – focus on God’s commands, grit your  teeth and try with all your might to do what God says.
  
    Paul rejects this approach as “spiritual” in 5:18  (re-read). Walking by the Spirit is not synonymous with exercising  will-power to obey God’s law. Paul calls  this living “under the Law,” and he pits walking by the Spirit against this.
    The direct approach always ends in defeat because our sinful  natures are too powerful and ingenious (Rom.7:14-23). You will wind up  either faking and hiding, redefining Christian character into external and  humanly-keepable behaviors (e.g., DON’T CUSS; GO TO CHURCH; SUPERFICIAL  NICENESS), or being honest about your inability to form Christian character and  giving up in despair. Only the power of  the Holy Spirit can transform our characters to live more and more like  Jesus. That’s why Paul calls this  transformation the “fruit of the Spirit” (gradually ripening resemblance to  Jesus’ character). 
  
  This is why Paul does not say in 5:16: “Don’t carry out the desire of the flesh (moral will-power)...”  That would be moral will-power as the  key. Nor does he say: “Walk by the  Spirit and do not carry out the  desires of the flesh.” That would still  be moral will-power alongside walking by the Spirit. He says: “Walk by the Spirit and (then) you  will not carry out the desire of the flesh.” This is what we call the “INDIRECT APPROACH” –  walking by the Spirit unleashes the power of the Spirit, who gradually changes  us to be more like Jesus (5:22,23).
  OK, now we’re ready to learn positively what it means to walk by  the Spirit...
Walking by the Spirit is ongoing choice to depend on the Spirit’s  power
  We can learn a few important things about how to walk by the  Spirit just by closely examining this phrase:
  
    “Walk” is in the imperative mood – it is a choice that we make; God won’t make it for you.
    “Walk” is also in the present tense – it is an ongoing choice (just  as the metaphor of physical walking suggest this ongoing choice) – not once a  year, etc. 
    “Walk by the Spirit” emphasizes  the Holy Spirit as the Source of power (rather than us). 
    So “walk by the Spirit” means “Keep choosing to depend on the Spirit’s  power.”
  
  This sounds almost paradoxical.  On the one hand, dependence means the Spirit supplies all the power for  change, and that we supply none of it.  On the other hand, this is not passivity, because the command to walk by  the Spirit means that we must keep actively choosing to avail ourselves of the  Spirit’s power. How do we depend  practically on the Spirit’s power? Paul  had evidently already instructed the Galatian Christians on how to do this, so  he simply reminds them here. However,  when he instructs the Roman Christians (whom he had never visited), he  discloses two key practical aspects of walking by the Spirit.
  
    Read Rom.6:13 – keep presenting yourself to God. The image here is us as choice-making  instruments. Think of a surgical  instrument – a scalpel for example. It  has no power of its own; the power lies in the person who wields the scalpel.  An evil person can wield the scalpel to do terrible damage. A surgeon can wield the scalpel to save lives  and bring healing. So we are instruments. We have no power in ourselves to do God’s  will; God, through His Spirit, must do His will through us. But, unlike inanimate scalpels, we can choose  to whom we present ourselves. Our natural  default is to present ourselves to sin,  and sin will use us to do its deeds (Gal.5:19-21a) and corrupt us and  others through us. Or we can consciously  to present ourselves to God,  and His Spirit will live His life through us and gradually bear His beautiful  fruit through us (Gal.5:22,23).
    
      The key here is living existentially – seeing each day as a  series of situations, and personally presenting yourself to God in each of  these situations, affirming that you are willing to serve Him, acknowledging  that you are inadequate to do so, and asking Him to give you the help of His  Spirit to this end. This is what Jesus  means when He speaks of Himself as the Vine and us as choosing branches (read  Jn.15:4,5 and point out these three elements). This is what Mary did when Gabriel told her  that God wanted her to be the mother of the Messiah (read Lk.1:38 and  point out these three elements). At the  beginning of each day, and then in each situation of my day, I am to choose to  say to God: “I am your bond-servant; be it done through me according to Your  will.” 
      Don’t be all-or-nothing about this. So you do this at the beginning of the day,  then forget to do this in the situations.  So you forget for several days even to do this at the beginning of the  day. Don’t beat yourself or  despair. Thank God for His forgiveness  and loving reminder, and just begin to present yourself again! He will immediately begin to lift you up again! Gradually, this can become more and more your  normal posture – though it will always be a choice.
    
    Read Rom.8:4-6 – keep setting your mind on the things of  the Spirit. “Walk according to the  Spirit” is the same idea as “walk by the Spirit.” Paul says that walking according to the  Spirit involves “setting our minds on the things of the Spirit.” In other  words, walking by the Spirit involves cultivating a proper mental focus.  Elsewhere, he calls these things “the things above” (Col.3:2) – and  refers to what God has given us through Christ (see below).
    
      Our natural default is to focus on ourselves – how awesome or  terrible we are, what we want but don’t have, what we have but don’t want, our  circumstances, how people treat us and what they think about us, etc. This mind-set unleashes our fallen natures to  bring “death” (moral defeat and discouragement) into our lives.
      Conversely, we can choose focus on God’s gracious provisions (e.g.,  God’s love and approval; the many ministries of the Holy Spirit; God’s  sovereign care; our unique role in God’s plan; our eternal destiny) by  deliberately learning them, memorizing them, recalling them, pondering them,  and thanking God for them. This mind-set  unleashes the power of the Holy Spirit to bring Jesus’ character (“life”) and  disposition (“peace”) increasingly into our lives.
      Here are a couple of practical tips about setting your mind on  the things of the Spirit:
      
        Work more at this more than at eliminating undesirable  behaviors (which easily degenerates into an unhealthy sin-focus and moral  will-power). This positive focus, and  the positive change and enjoyment it brings will gradually “crowd out” a  fleshly mind-set.
        While it takes time to replace the “self-focus” mental grooves  with this focus, God works disproportionately during the time we do focus on  these things. You don’t have to get to  51% of your focus on these things before you experience change. Moving from 5% to 10% can bring noticeable  changes in your disposition and behavior!  Start where you are and add!
        Do this with others as much as possible rather than make this  primarily a private project. You will  never make much progress in this if you are isolated from other Christians. Build a healthy schedule of teachings and  fellowship (home church, cell group, one-on-one times, etc.). Add to this spontaneous thanksgiving and  spiritual interaction with other Christians.
      
    
  
Conclusion
SUMMARIZE: 2 key aspects of walking by the Spirit
NEXT WEEK: “Keep in Step with the Spirit”
Q & A: Encourage questions
  “Do not  present yourselves to sin” is in the present tense, probably implying a default  posture.
  “Present  yourselves to God” is in the aorist tense, probably implying deliberate,  conscious choice.