Having the Holy Spirit vs Being Filled with the Spirit: Does the Holy Spirit come into your life the very moment you are saved and live with you forever? [Romans 8:9, Acts 8, John 14:16, John 15:6]. Apostasy and Returning to Christ: If someone only believes for a while, can that person ever come back and receive the Holy Spirit and be saved? [Hebrews 6:4-6, James 5:19-20, 2 Peter 2:20, John 18:15-18, John 21:15-17].