I Peter 2:1-3
New birth implies the beginning of a new life. As unbelievers, we were self-centred; we saw nothing wrong in deceiving, manipulating or despising others. But this kind of attitude is the complete opposite of Christian brotherly love! From a Christian point of view, it is babyish behaviour; we need to grow out of it and leave it behind.
Now spiritual maturity cannot be achieved instantaneously; growth is of necessity a slow and sometimes painful process. But the same word of God that gave us spiritual birth also contains everything we need for spiritual growth. Just as tiny babies need frequent regular feeding with the right food, so new Christians need to feed on ‘the milk of the Word’ (verse 2) in order to be nourished and strengthened. But if the Word is distorted or ‘watered down’, then young Christians will not become healthy and strong in their faith. They may become permanently ‘stunted’, or even handicapped.
“You have tasted that the Lord is good.” (verse 3) Our first taste of God’s grace was when we responded to the Gospel. But that was just an appetiser! Anyone who has once sampled God’s kindness and love will desire to have more. And a relationship with God should become deeper and more satisfying with time, as we learn more about Him.