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."
Cross References (ranked by relevance)
Wherefore the rather, brethren, give diligence to make your calling and election sure: for if ye do these things, ye shall never fall:
Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.
Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.
And they come unto thee as the people cometh, and they sit before thee as my people, and they hear thy words, but they will not do them: for with their mouth they shew much love, but their heart goeth after their covetousness.
The desire of the slothful killeth him; for his hands refuse to labour.
Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.
Whereunto I also labour, striving according to his working, which worketh in me mightily.
For they being ignorant of God’s righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God.
Ye shall seek me, and shall not find me: and where I am, thither ye cannot come.
The labour of the foolish wearieth every one of them, because he knoweth not how to go to the city.
And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood.
A scorner seeketh wisdom, and findeth it not: but knowledge is easy unto him that understandeth.
Then said Jesus again unto them, I go my way, and ye shall seek me, and shall die in your sins: whither I go, ye cannot come.