Matthew 7:14

Because narrow is the gate, and narrow is the way, which leads unto life, and few there be that find it.

Acts 14:22

Confirming the souls of the disciples, and exhorting them to continue in the faith, and that we must through much tribulation enter into the kingdom of God.

Proverbs 4:26-27

Ponder the path of your feet, and let all your ways be established.

Proverbs 8:20

I lead in the way of righteousness, in the midst of the paths of justice:

Isaiah 30:21

And your ears shall hear a word behind you, saying, This is the way, walk you in it, when you turn to the right hand, and when you turn to the left.

Isaiah 35:8

And a highway shall be there, and a way, and it shall be called The way of holiness; the unclean shall not pass over it; but it shall be for others: the wayfaring men, though fools, shall not err therein.

Isaiah 57:14

And it shall be said, Heap it up, heap it up, prepare the way, take up the stumbling block out of the way of my people.

Jeremiah 6:16

Thus says the LORD, Stand you in the ways, and see, and ask for the old paths, where the good way is, and walk in it, and you shall find rest for your souls. But they said, We will not walk in it.

Matthew 16:24-25

Then said Jesus unto his disciples, If any man will come after me, let him deny himself, and take up his cross, and follow me.

Matthew 20:16

So the last shall be first, and the first last: for many are called, but few chosen.

Matthew 22:14

For many are called, but few are chosen.

Matthew 25:1-12

Then shall the kingdom of heaven be likened unto ten virgins, who took their lamps, and went forth to meet the bridegroom.

Mark 8:34

And when he had called the people unto him with his disciples also, he said unto them, Whosoever will come after me, let him deny himself, and take up his cross, and follow me.

Luke 12:32

Fear not, little flock; for it is your Father's good pleasure to give you the kingdom.

Luke 13:23-30

Then said one unto him, Lord, are there few that be saved? And he said unto them,

John 15:18-20

If the world hates you, you know that it hated me before it hated you.

John 16:2

They shall put you out of the synagogues: yea, the time comes, that whosoever kills you will think that he does God service.

John 16:33

These things I have spoken unto you, that in me you might have peace. In the world you shall have tribulation: but be of good cheer; I have overcome the world.

Romans 9:27-29

Isaiah also cries concerning Israel, Though the number of the children of Israel be as the sand of the sea, a remnant shall be saved:

Romans 9:32

Why? Because they sought it not by faith, but as it were by the works of the law. For they stumbled at that stumbling stone;

Romans 11:5-6

Even so then at this present time also there is a remnant according to the election of grace.

Romans 12:2

And be not conformed to this world: but be transformed by the renewing of your mind, that you may prove what is that good, and acceptable, and perfect, will of God.

Ephesians 2:2-3

In which in time past you walked according to the course of this world, according to the prince of the power of the air, the spirit that now works in the children of disobedience:

1 Thessalonians 3:2-5

And sent Timothy, our brother, and minister of God, and our fellow worker in the gospel of Christ, to establish you, and to encourage you concerning your faith:

1 Peter 3:20-21

Who formerly were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was being prepared, by which a few, that is, eight souls were saved through water.

Treasury of Scripture Knowledge

Summary

Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.

Bible References

Because

Matthew 16:24
Then said Jesus unto his disciples, If any man will come after me, let him deny himself, and take up his cross, and follow me.
Proverbs 4:26
Ponder the path of your feet, and let all your ways be established.
Proverbs 8:20
I lead in the way of righteousness, in the midst of the paths of justice:
Isaiah 30:21
And your ears shall hear a word behind you, saying, This is the way, walk you in it, when you turn to the right hand, and when you turn to the left.
Isaiah 35:8
And a highway shall be there, and a way, and it shall be called The way of holiness; the unclean shall not pass over it; but it shall be for others: the wayfaring men, though fools, shall not err therein.
Isaiah 57:14
And it shall be said, Heap it up, heap it up, prepare the way, take up the stumbling block out of the way of my people.
Jeremiah 6:16
Thus says the LORD, Stand you in the ways, and see, and ask for the old paths, where the good way is, and walk in it, and you shall find rest for your souls. But they said, We will not walk in it.
Mark 8:34
And when he had called the people unto him with his disciples also, he said unto them, Whosoever will come after me, let him deny himself, and take up his cross, and follow me.
John 15:18
If the world hates you, you know that it hated me before it hated you.
John 16:2
They shall put you out of the synagogues: yea, the time comes, that whosoever kills you will think that he does God service.
Acts 14:22
Confirming the souls of the disciples, and exhorting them to continue in the faith, and that we must through much tribulation enter into the kingdom of God.
1 Thessalonians 3:2
And sent Timothy, our brother, and minister of God, and our fellow worker in the gospel of Christ, to establish you, and to encourage you concerning your faith:

General references

Numbers 4:48
Even those that were numbered of them, were eight thousand and five hundred and fourscore.
Proverbs 2:9
Then shall you understand righteousness, and justice, and equity; yea, every good path.
Proverbs 14:12
There is a way which seems right unto a man, but the end thereof are the ways of death.
Matthew 22:14
For many are called, but few are chosen.
Romans 3:17
And the way of peace have they not known: