Our Lord’s exhortation to us in Matthew 5:38-48 is to be generous in our behavior toward everyone. Beware of living according to your natural affections in your spiritual life. Everyone has natural affections— some people we like and others we don’t like. Yet we must never let those likes and dislikes rule our Christian life. “If we walk in the light as He is in the light, we have fellowship with one another” (1 John 1:7), even those toward whom we have no affection.

The example our Lord gave us here is not that of a good person, or even of a good Christian, but of God Himself. “…be perfect, just as your Father in heaven is perfect.” In other words, simply show to the other person what God has shown to you. And God…