Matthew 22:14 NIV

2 Peter 1:10 NIV
Therefore, my brothers and sisters, make every effort to confirm your calling and election. For if you do these things, you will never stumble,

Luke 13:23-24 NIV
Someone asked him, “Lord, are only a few people going to be saved?” He said to them, “Make every effort to enter through the narrow door, because many, I tell you, will try to enter and will not be able to.

Matthew 20:16 NIV
“So the last will be first, and the first will be last.”

Matthew 7:13-14 NIV
“Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. But small is the gate and narrow the road that leads to life, and only a few find it.

Revelation 17:14 NIV
They will wage war against the Lamb, but the Lamb will triumph over them because he is Lord of lords and King of kings —and with him will be his called, chosen and faithful followers.”