Richard Ritenbaugh, responding to a Trinitarian's objection to the word "it" when referring to God's Spirit, systematically analyzes bogus, Neo-Platonic, philosophical underpinnings of the Trinity doctrine, including the equivocal misapplication of the etymology of hypostasis. Fundamentalist Trinitarians have continual difficulty comprehending the Bible writer's abundant use of personification, metaphor, and anthropomorphic figures of speech when describing God's Holy Spirit. Paul's reference to "grieving the Holy Spirit" can only apply to those converted individuals who have access to (or who are being sealed with) God's Holy Spirit, those who are incrementally putting on the new man. Just as our human spirit can be grieved (or metaphorically deflated by bad news), God is grieved by our disobedience or willful sinful behavior—sullying, suppressing, or stifling the Spirit that identifies us as His.
John Ritenbaugh affirms that the Christian's hope constitutes an incremental acquisition of God's glory; that is what the New Covenant is all about. At this point in time, Christ is the only one who has received His inheritance, becoming the first-born of many brethren (Romans 8:29; Hebrews 2:10), having a glorified spiritual body (Revelation 1:13-16). Our hope, as we yield to God, is to be like Him (I John 3:1-3), to become a glorified member of God's family. Christ's sacrifice enabled us to get close to God, establishing a family relationship with Him. As we participate in the New Covenant, we go through the stages of justification, sanctification, and ultimately glorification as part of Christ's body.
John Ritenbaugh warns that Satan, through subtle doctrinal changes, has attempted to obliterate one major step in the conversion process, namely the sanctification step. Sanctification is the only step which shows (witnesses) on the outside; its effects cannot be hidden. Sanctification is produced by our choosing to do works pleasing to Almighty God. Works are not meant for our salvation, but for our transformation and growing in the knowledge of God. Without transformation, there is no Kingdom to look forward to (Romans 14:10; II Corinthians 5:10; and Revelation 20:13). As with physical exercise, spiritual exercise also mandates: no pain, no gain.