John’s gospel introduces the Holy Spirit’s role in spiritual growth. The New Birth and Baptism with the Holy Spirit endow the believer with the life and gifts of the Holy Spirit. The Holy Spirit is our Teacher, Helper Advocate, and Guide. He is the source of our true spiritual understanding. Without spiritual rebirth by the Holy Spirit it is not possible to perceive of, let alone enter into the kingdom of God (3:3). Once we have been born of the spirit, He enables us to understand and live by the truth (14:25-26). Without the Spirit of God living within us, we can never understand or walk in the truth, because the natural man does not receive the things of the Spirit of God (1 Cor. 2:14). It is the teaching of the Holy Spirit within us that helps us to know and understand the truth of God’s word (John 16:12-15).