Verses with the word strait in the New Testament (4 verses):

Matthew 7:13
Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat:

Matthew 7:14
Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.

Luke 13:24
Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.

Philippians 1:23
For I am in a strait betwixt two, having a desire to depart, and to be with Christ; which is far better: