1 John 5:10

The one believing on the Son of God has the witness in himself: the one not believing God has made him a liar; because he has not believed in the testimony which God has testified concerning his Son.

John 3:33

The one having received His testimony hath set his seal, that God is true.

Romans 8:16

The Spirit Himself witnesses along with our spirit, that we are the children of God.

1 John 1:10

If we may say that we have not sinned, we make him a liar, and his word is not in us.

John 5:38

and you have not His word abiding in you: because you do not believe Him whom He has sent.

John 3:16

For God so loved the world that He gave His only begotten Son, that every one believing on Him may not perish but have eternal life.

Colossians 3:3

For ye are dead, and your life is hidden with Christ in God:

Hebrews 3:12

See, brethren, lest at some time there shall be in some one of you an evil heart of unbelief, in turning away from the living God:

2 Peter 1:19

And we have the more certain word of prophecy; to which you do well giving heed, as to a light shining in a dark place, until the day may dawn, and the morning-star may rise in your hearts:

1 John 5:1

Every one believing that Jesus is the Christ has been born of God: and every one loving with divine love him who begat, also loves him who has been begotten of him, with divine love.

Revelation 2:17

Let the one having ears hear what the Spirit says to the churches; unto the one conquering will I give to him of the hidden manna, and I will give him a white stone, and on the stone my new name having been written, which no one knows but the one receiving it.

Revelation 2:28

and I will give unto him the morning star.

Revelation 12:17

And the dragon was enraged at the woman, and went away to make war with the remnant of her seed, who keep the commandments of God, and have the testimony of Jesus.

Treasury of Scripture Knowledge

Summary

He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.

General references

Bible References

Hath the

Romans 8:16
The Spirit Himself witnesses along with our spirit, that we are the children of God.
Colossians 3:3
For ye are dead, and your life is hidden with Christ in God:
2 Peter 1:19
And we have the more certain word of prophecy; to which you do well giving heed, as to a light shining in a dark place, until the day may dawn, and the morning-star may rise in your hearts:
Revelation 2:17
Let the one having ears hear what the Spirit says to the churches; unto the one conquering will I give to him of the hidden manna, and I will give him a white stone, and on the stone my new name having been written, which no one knows but the one receiving it.

Hath made

1 John 1:10
If we may say that we have not sinned, we make him a liar, and his word is not in us.
John 3:33
The one having received His testimony hath set his seal, that God is true.
John 5:38
and you have not His word abiding in you: because you do not believe Him whom He has sent.
Hebrews 3:12
See, brethren, lest at some time there shall be in some one of you an evil heart of unbelief, in turning away from the living God:

General references

Hebrews 3:19
And we see that they were not able to enter in on account of their unbelief.