Matthew 7:13-14
Enter ye in through the narrow gate: because wide is the gate and broad is the way, that leadeth to destruction, and many there are, who are going in through it.
Luke 13:24
Agonize to enter in through the narrow gate: because many, I say unto you, will seek to enter in, and will not be able.
Acts 2:40
And with many other words did he testify and exhort them, saying, Be saved from this wicked generation.
2 Corinthians 6:17
Therefore come out from the midst of them, and be ye separate, says the Lord, and touch not the unclean thing; and I will receive you,
Revelation 18:4
And I heard another voice out of the heaven, saying, Come out from her, my people, in order that you may not partake of her sins, and in order that you may not receive of her plagues;