Hebrews 11:6

And, apart from faith, it is impossible to please Him; for he that comes to God must believe that He is, and that He becomes a rewarder to those who seek after Him.

Hebrews 4:6

Since, therefore, it remains for some to enter into it, and those to whom the Gospel was formerly proclaimed entered not in because of unbelief,

Hebrews 3:18-19

And to whom did He swear, that they should not enter into His rest, but to those who were disbelieving?

Matthew 5:12

Rejoice, and exult; because great is your reward in Heaven, for so persecuted they the prophets who were before you.

Matthew 6:1-2

"Take heed that ye do not your righteousness before men, to be seen by them, otherwise at least ye have no reward with your Father Who is in Heaven.

Matthew 6:5

"And, when ye pray, ye shall not be as the hypocrites; for they love to pray, standing in the synagogues and in the corners of the streets, that they may be seen by men: verily I say to you, they have their reward.

Matthew 6:16

"And, when ye fast, be not as the hypocrites, of a sad countenance; for they disfigure their faces, that they may appear to men to fast. Verily I say to you, they receive their reward.

Matthew 6:33

But seek ye first His Kingdom and His righteousness; and all these things shall be added to you.

Matthew 10:41-42

He that receives a prophet in the name of a prophet shall receive a prophet's reward; and he that receives a righteous man in the name of a righteous man shall receive a righteous man's reward.

Mark 16:17

And these signs shall accompany those having believed: in My name will they cast out demons: they will speak with tongues;

Luke 6:35

"But love your enemies; and do good, and lend, hoping for nothing in return; and your reward will be great, and ye will be sons of the Most High; because He is kind to the unthankful and evil.

Luke 12:31

But seek ye His Kingdom, and these things shall be added to you.

John 3:18-19

He that believes on Him is not judged; he that believes not has been judged already, because he has not believed on the name of the only begotten Son of God.

John 8:24

I said, therefore, to you, that ye will die in your sins; for, unless ye believe that I am He, ye will die in your sins."

John 14:6

Jesus saith to him, "I am the way, and the truth, and the life. No one comes to the Father, except through Me.

Romans 10:14

How, then, shall they call on Him in Whom they believed not? and how shall they believe on Him of Whom they heard not? and how shall they hear without a preacher?

Galatians 5:6

For in Christ Jesus neither circumcision avails anything, nor uncircumcision, but faith working through love.

Hebrews 3:12

Take heed, brethren, lest at any time there shall be in anyone of you an evil heart of unbelief, in falling away from the living God;

Hebrews 4:2

For, indeed, we have had the Gospel proclaimed to us, even as also they; but the word which they heard did not profit them, not having been mingled with faith on the part of those who heard.

Hebrews 7:19

(for the law perfected nothing), and a bringing in of a better hope, through which we draw near to God.

Hebrews 7:25

Whence also He is able to save completely those who come to God through Him, since He is ever living to intercede in their behalf.

Hebrews 11:26

regarding the reproach of the Christ greater riches than the treasures of Egypt; for he was looking away to the recompense.

2 Peter 1:5

and, even for this very reason, adding all diligence, in your faith supply virtue; and in virtue, knowledge;

2 Peter 1:10

Wherefore, brethren, give the more diligence to make your calling and election sure; for, if ye do these things, ye shall in nowise ever stumble;

2 Peter 3:14

Wherefore, beloved, since ye are looking for these things, give diligence that ye be found in peace, without spot and blameless in His sight.

Revelation 21:8

But, for the fearful, and unbelieving, and abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all the liars, their part shall be in the lake that burns with fire and brimstone; which is the second death."

Treasury of Scripture Knowledge

Summary

But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.

Bible References

Without

Hebrews 3:12
Take heed, brethren, lest at any time there shall be in anyone of you an evil heart of unbelief, in falling away from the living God;
Hebrews 4:2
For, indeed, we have had the Gospel proclaimed to us, even as also they; but the word which they heard did not profit them, not having been mingled with faith on the part of those who heard.
Mark 16:17
And these signs shall accompany those having believed: in My name will they cast out demons: they will speak with tongues;
John 3:18
He that believes on Him is not judged; he that believes not has been judged already, because he has not believed on the name of the only begotten Son of God.
John 8:24
I said, therefore, to you, that ye will die in your sins; for, unless ye believe that I am He, ye will die in your sins."
Galatians 5:6
For in Christ Jesus neither circumcision avails anything, nor uncircumcision, but faith working through love.
Revelation 21:8
But, for the fearful, and unbelieving, and abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all the liars, their part shall be in the lake that burns with fire and brimstone; which is the second death."

He that

Hebrews 7:25
Whence also He is able to save completely those who come to God through Him, since He is ever living to intercede in their behalf.
John 14:6
Jesus saith to him, "I am the way, and the truth, and the life. No one comes to the Father, except through Me.

Must

Romans 10:14
How, then, shall they call on Him in Whom they believed not? and how shall they believe on Him of Whom they heard not? and how shall they hear without a preacher?

A rewarder

Hebrews 11:26
regarding the reproach of the Christ greater riches than the treasures of Egypt; for he was looking away to the recompense.
Matthew 5:12
Rejoice, and exult; because great is your reward in Heaven, for so persecuted they the prophets who were before you.
Matthew 6:1
"Take heed that ye do not your righteousness before men, to be seen by them, otherwise at least ye have no reward with your Father Who is in Heaven.
Matthew 10:41
He that receives a prophet in the name of a prophet shall receive a prophet's reward; and he that receives a righteous man in the name of a righteous man shall receive a righteous man's reward.
Luke 6:35
"But love your enemies; and do good, and lend, hoping for nothing in return; and your reward will be great, and ye will be sons of the Most High; because He is kind to the unthankful and evil.

Diligently

Matthew 6:33
But seek ye first His Kingdom and His righteousness; and all these things shall be added to you.
Luke 12:31
But seek ye His Kingdom, and these things shall be added to you.
2 Peter 1:5
and, even for this very reason, adding all diligence, in your faith supply virtue; and in virtue, knowledge;
2 Peter 3:14
Wherefore, beloved, since ye are looking for these things, give diligence that ye be found in peace, without spot and blameless in His sight.