24 “Make every effort to enter through the narrow door, because many, I tell you, will try to enter and will not be able to.

Read Luke 13:24 Using Other Translations

Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.
"Strive to enter through the narrow door. For many, I tell you, will seek to enter and will not be able.
“Work hard to enter the narrow door to God’s Kingdom, for many will try to enter but will fail.