Romans 8:14 (NKJV)
4 "For as many as are led by the Spirit of God, these are sons of God".
In the context of this scripture, it's talking about how important it is for you not to live according to your flesh, but instead by the Spirit. To be a true follower of Christ you have to make decisions that are led by the Spirit of God. The best way to overcome any sin or struggle in your life is to let the Holy Spirit direct your life.