Matthew 7:13-14 Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. But small is the gate and narrow the road that leads to life, and only a few find it.
The Sermon on the Mount reveals the two ways in which we can live. The Christian way is restricting in devotion, not self-centered in service, private in worship and uncomfortable in living. It is a way which can be described as "small is the gate and narrow the road". The world's way is unrestrictive in its many alternatives to devotion and conformity to world opinions. The world's focus is on the individual and his wants. The word worships the creation, not the creator. For them "wide is the gate and broad is the road that leads to destruction".
The Sermon on the Mount is a call to believers to be different from the world. There are only two ways to live your life. The narrow way of Christ will cause persecution to the believer. If you are not persecuted then you have been accepted by the world, no different from them. If you conform you are left alone; if you are different you are persecuted.