In 1 Peter 1:15 & 16 he writes:
But just as he who called you is holy, so be holy in all you do; for it is written: “Be holy, because I am holy.”
This is a direct reference to Leviticus 11:44 &45. Holiness is such a foreign concept for our age. The spirit of our times is, “if it feels good, do it!” Principles, values and consequences have very little place in our Western lifestyle. It would be easy to drag out a litany of examples but sadly I don’t need to because we are all fully aware of what I mean. It is pervasive.
But the biggest tragedy is that God’s children are not immune. We too are tainted by our age. Statistics show that lifestyle choices in the church are not radically different from the rest of the world.
God’s command is an immensely important one. We are to be holy because we are called to reflect the one who redeemed us. Our lives are to be witnesses of God and what he has done in Christ. Our lives are called to be living examples of the power of the gospel.
When we fail to grow in holiness our lives mock God. By not growing in holiness our lives say to the world, “Really, the gospel is not that influential. The power that Paul speaks of is not that life changing.”
The most powerful witness that the body of Christ has, is to live the radical life changing power of the gospel! All our words,sermons and pamphlets will come to naught if our neighbours do not see the change the gospel has wrought in us.