Sever yourselves from such a man whose breath is in his nostrils for of what account is he? – Isaiah 2:22
The process of getting saved through confession and belief (see Romans 10:9) in punctuated by Jesus breathing the Holy Spirit into us – just as He breathed the Holy Spirit into His disciples (see John 20:22). He not only does this upon confession but then He seals His Spirit within us by the power of his death and resurrection – so that we can no longer die spiritually. In a repeat of what happened in the beginning when Adam was formed (see Genesis 2:7), Jesus again breathes the breath of life into man – so that we are born again. Again, this new birth through the breath of the Holy Spirit embedded deeply hidden within us and is covered with the blood of Jesus so that nothing foul or evil can penetrate. This time around (unlike in the time of Adam), the breath of life cannot escape, be corrupted, or be extinguished.
Light-bulb moment: New Birth (salvation) ensures that we no longer need a respirator to breath but can live on the breath within us (the Holy Spirit)
Whereas once before, Satan used to enjoy us breathing from within for it was the breath of death, now all he tries to do is suffocate the breath in us. He no longer wants us to inhale deeply so as to draw out and unleash the breath of life (the power of the Holy Spirit) into the world. Rather, he wants us to breathe out only what the world tries to introduce into our nostrils. Instead of taking deep breaths from within, he wants us to breathe out from our nostrils what has entered into our nostrils. If you have ever tried to breathe from you nostrils, you know that it feels much like suffocating – for it is not from within.
Light-bulb moment: If we do not tap into the Spirit of God within us, then we suffocate and die to the life inherent in God
Now, the only thing palatable to breathe from the outside is the word of God through our sensory organs. When the word of God enters through our nostrils and goes into our Spirit, it agrees with the Spirit and produces the power of God that we may breathe out and impart onto the world. Should we simply stop at breathing in the word of God into our nostril without inhaling deeply so it reaches the Spirit, then the word that we breathe out is powerless for it has not been touched by the Holy Spirit. Hence, we have to make sure we breathe in deeply in order to experience the goodness and power of God in our lives.
Light-bulb moment: Anything we breathe into our nostrils that is not the word of God is the breath of corruption from the outside world.
To summarize, this discussion is only reiterating what the Apostle Paul says when he implores us to walk in the Spirit that we have received (see Galatians 5:25). In other words, Paul is saying that if we have received the breath of life (the Holy Spirit), we must tap into that Spirit by breathing deeply so that we may exhale (produce) the life and goodness inherent in the Spirit of God (see Galatians 5:22). Furthermore, we must breathe in the word of God deeply if it is to have any power and produce any fruit in our lives.
Thus, Isaiah 2:22 for the born again believer is really saying this: Sever yourself from that person who has the Spirit of God but refuses to walk in the Spirit for he is only fulfilling the desires of the flesh – fornication, lewdness, and so forth (see Galatians 5:19)
Food for Thought: Just as there is no point owning treasure we can never reach, it does no good having the Holy Spirit here on earth if we do not walk in the Spirit.