Matthew 7:14

but the gate which leads to life is narrow, and the way is difficult, and few there be that find it.

Acts 14:22

encouraging the disciples, exhorting them to persevere in the faith, representing that it is thro' much tribulation that we must enter into the kingdom of God.

Matthew 16:24-25

Then addressing himself to his disciples, if any man, said he, would follow me, let him renounce himself, take up his cross, and so follow me.

Matthew 20:16

thus the last shall be first, and the first last: for though many are invited, few have precedence.

Matthew 22:14

thus many are called, but few are converted.

Matthew 25:1-12

The kingdom of the Messiah will then be such, as when ten virgins took their lamps, and went out to meet the bridegroom.

Mark 8:34

Then addressing himself to the people, and his disciples, he said, he that desires to be under my conduct, let him renounce himself, and follow me.

Luke 12:32

fear not, ye little flock, for it is your father's good pleasure to grant you the kingdom.

Luke 13:23-30

and somebody ask'd him, Lord, will there be but few people saved? to which he answered,

John 15:18-20

if the world hate you, consider that it hated me before it hated you.

John 16:2

they shall expel you out of the synagogues: yea, the time is coming, when it will be thought an agreeable sacrifice to God for any one to take away your lives.

John 16:33

these things I have appriz'd you of, that ye might repose your confidence in me. the world shall give you trouble: but take courage, I have overcome the world.

Romans 9:27-29

Esaias also breaks out concerning Israel, " tho' the number of the children of Israel be as the sand of the sea, a remnant only shall be saved.

Romans 9:32

why? because they sought it not by faith, but indeed by the works of the law: for they stumbled at that stumbling-stone;

Romans 11:5-6

in like manner at this time there is also a remnant chosen by the divine favour;

Romans 12:2

and be not conformed to the present age: but be ye transformed by the renewing of your mind, that you may perceive what God requires of you is good, and acceptable, and perfect.

Ephesians 2:2-3

in which you formerly liv'd, influenc'd by the customs of this world, and by the prince of the aerial powers, the spirits that now actuate the incredulous:

1 Thessalonians 3:2-5

a minister of God, and our collegue in preaching the gospel of Christ, that by establishing you in the faith, and by his exhortations,

1 Peter 3:20-21

those antient rebels in the time of Noah, when the divine forbearance waited, till the ark was quite finish'd, in which only eight persons were saved by means of the 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.

General references

Bible References

Because

Matthew 16:24
Then addressing himself to his disciples, if any man, said he, would follow me, let him renounce himself, take up his cross, and so follow me.
Mark 8:34
Then addressing himself to the people, and his disciples, he said, he that desires to be under my conduct, let him renounce himself, and follow me.
John 15:18
if the world hate you, consider that it hated me before it hated you.
John 16:2
they shall expel you out of the synagogues: yea, the time is coming, when it will be thought an agreeable sacrifice to God for any one to take away your lives.
Acts 14:22
encouraging the disciples, exhorting them to persevere in the faith, representing that it is thro' much tribulation that we must enter into the kingdom of God.
1 Thessalonians 3:2
a minister of God, and our collegue in preaching the gospel of Christ, that by establishing you in the faith, and by his exhortations,

General references

Matthew 22:14
thus many are called, but few are converted.
Romans 3:17
and the way of peace have they not known.