Holy Spirit and his gifts operation in new testament. In the New Testament, the Holy Spirit is known as the Spirit of Grace, the Spirit of Truth, the Spirit of Wisdom and Understanding, the Spirit of Glory and the Comforter. Prayer and the Holy Spirit go hand in hand. It is the Holy Spirit that helps us to pray. More importantly, for New Testament believers, this age is known as the age of the Holy Spirit. Prayer is the key to the revelation of known truth in our lives.