How often do we start off our day (intentionally) with the idea of being pure and blameless? It sounds like a lofty goal. It could sound like a given(for the self-righteous). For the follower of Christ, it should be more than the ideal; it should be the norm. It's what we do. (or should do) Pure and blameless go together like two peas in a pod. If I maintain purity, then I will be blameless. Unfortunately, the world we mill around in on a daily basis is against purity. It is more about conformity and plurality. Go against the grain today, and be pure. You won't have to watch your back, because you will be blameless.
Suggested reading Phil.1:1-11
