Luke 13:24 in the King James Version
Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.
Context
23 One said to him, “Lord, are they few who are saved?” He said to them,
24 “Strive to enter in by the narrow door, for many, I tell you, will seek to enter in and will not be able.
25 When once the master of the house has risen up and has shut the door, and you begin to stand outside and to knock at the door, saying, ‘Lord, Lord, open to us!’ then he will answer and tell you, ‘I don’t know you or where you come from.’