2 Bible Verses about Narrowness

Go in by the small gate. Broad and spacious is the road that leads to destruction, and those that go in by it are many; For small is the gate, and narrow the road, that leads to Life, and those that find it are few.

Jesus went through towns and villages, teaching as he went, and making his way towards Jerusalem. "Master," some one asked, "are there but few in the path of Salvation?" And Jesus answered: "Strive to go in by the small door. Many, I tell you, will seek to go in, but they will not be able,read more.
When once the master of the house has got up and shut the door, while you begin to say, as you stand outside and knock, 'Sir, open the door for us.' His answer will be--'I do not know where you come from.' Then you will begin to say 'We have eaten and drunk in your presence, and you have taught in our streets,' and his reply will be-- 'I do not know where you come from. Leave my presence, all you who are living in wickedness.' There, there will be weeping and grinding of teeth, when you see Abraham, Isaac, and Jacob, and all the Prophets, in the Kingdom of God, while you yourselves are being driven outside. People will come from East and West, and from North and South, and take their places at the banquet in the Kingdom of God. there are some who are last now who will then be first, and some who are first now who will then be last!"