Positional sanctification: our holy status before God is ours solely because of the gracious gift of God, if we are in Christ Jesus. From this perspective there is nothing we can do to become holy, it is a status conferred upon us by faith in Jesus. We can only receive it with gratitude. What about our present spiritual condition and level of Christian maturity or conditional sanctification? Here too we must first acknowledge that holiness is God's work. It is the fruit of the Holy Spirit at work in us (Gal 5:22-23). We gain victory over sin in our lives only because God empowers us to do so (Rom 8:12-14). We grow only because the Spirit is making us more like Christ (2 Corin 3:18).
Yet the Bible clearly reveals to us that we have a role to play in our becoming more like Christ. Whilst the Spirit is the agent of our sanctification, he works through our cooperation. We must diligently apply ourselves to the task of being made more into the likeness of Christ (2 Pet. 1:5-11).
So it requires diligence to become more like Christ. Even of this of course, we are again to recognise our dependence on God, utilising his provision as we seek to combat sin, Satan and self (Eph 6:10-18, 2 Peter 1:3). But of course there is more to the Christian holiness than "sin management." There is also a positive dimension to the quest, putting on Christian character and fruit. In both these aspects of holiness our resources are many. They include Bible Study, prayer, the support of other Christians and the strengthening of the Holy Spirit.
Grace and peace from Marcus
(These words were taken from Stanley Grenz's 'Created for Community')