This persecution brings into sharp relief the difference between the world and the people of God, the kingdom of God. The word ‘strange’ means strange in the sense of foreigners.
The testimony of a distinctive lifestyle is very powerful. The world regards Christians with a variety of emotions. At the very least, there is surprise that, because of religious convictions, the Christian will abstain from the very things that make life most worth living to the unbeliever. ‘What is it that these followers of Christ have found that makes them ready to forfeit so much that we enjoy?’ It is not as if these Christians have not experienced the pleasures of sin in the past and are ignorant of them. Many in the world can testify that they knew how believers lived before their conversion, for they entered into the same debaucheries with as much gusto as anyone else. Are the new treasures which they have found in Christ so real that they can afford to discard things that give such satisfaction? This is the message which a reformed life communicates. Who are these uncompromising ones who do not go along with the wisdom of this world? The unbeliever is uncomfortable in their presence and in order to justify himself, it will speak evil of them, even though he knows that his own behaviour is evil. Thus, hypocrisy becomes a necessity if an unrighteous world is to defend itself.