Matthew 7:13-14
"Enter by the narrow gate; for wide is the gate and broad the road which leads to ruin, and many there are who enter by it;
Luke 13:24
"Strain every nerve to force your way in through the narrow gate," He answered; "for multitudes, I tell you, will endeavour to find a way in and will not succeed.
Acts 2:40
And with many more appeals he solemnly warned and entreated them, saying, "Escape from this crooked generation."
2 Corinthians 6:17
Therefore, "'Come out from among them and separate yourselves,' says the Lord, 'and touch nothing impure; and I will receive you, and will be a Father to you,
Revelation 18:4
Then I heard another voice from Heaven, which said, "Come out of her, My people, that you may not become partakers in her sins, nor receive a share of her plagues.