Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry. Because of these, the wrath of God is coming. You used to walk in these ways, in the life you once lived. But now you must also rid yourselves of all such things as these: anger, rage, malice, slander, and filthy language from your lips. Do not lie to each other, since you have taken off your old self with its practices and have put on the new self, which is being renewed in knowledge in the image of its Creator.
— Colossians 3:5-10

Every Christian is in a continuing education program. The more we know Christ and his work, the more we are being changed to be like him. Because this process is lifelong, we must never stop learning and obeying. There is no justification for drifting along, but there is an incentive to find rich treasures of growing in him. It take practice, ongoing review, patience and concentration to keep in line with his will.
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