1 John 5:10

He that believes on the Son of God has the testimony in himself; he that believes not God has made him a liar, because he has not believed in the testimony which God has testified concerning his Son.

John 3:33

He that receives his testimony has sealed that God is true.

Romans 8:16

The Spirit itself is a co-witness with our spirits that we are children of God.

Galatians 4:6

And because you are sons, God has sent forth the Spirit of his Son into your hearts, crying, Abba, Father.

1 John 1:10

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

John 5:38

and his word you have not continuing in you, for whom he has sent, him you believe not.

John 3:16

For God so loved the world that he gave his only Son, that every one believing in him may not perish but have eternal life.

Colossians 3:3

For you have died, and your life is hid with Christ in God;

Hebrews 3:12

See, brothers, that there be not at any time in any one of you an evil mind of unbelief in departing from the living God;

2 Peter 1:19

And we have the more sure prophetic word, to which you will do well to attend, as to a light shining in a dark place, till the day dawns and the day-star arises in your hearts,

1 John 5:1

Every one who believes that Jesus is the Christ has been born of God, and every one who loves the Father loves also the Son who is born to him.

Revelation 2:17

Let him that has an ear hear what the Spirit says to the churches; To him that conquers will I give of the hidden manna, and I will give him a white token, and on the token a new name engraved, which no one knows but he that receives it.

Revelation 2:28

and I will give him the star of the morning.

Revelation 12:17

And the dragon was angry with the woman, and went to make war with the rest of her children 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 itself is a co-witness with our spirits that we are children of God.
Galatians 4:6
And because you are sons, God has sent forth the Spirit of his Son into your hearts, crying, Abba, Father.
Colossians 3:3
For you have died, and your life is hid with Christ in God;
2 Peter 1:19
And we have the more sure prophetic word, to which you will do well to attend, as to a light shining in a dark place, till the day dawns and the day-star arises in your hearts,
Revelation 2:17
Let him that has an ear hear what the Spirit says to the churches; To him that conquers will I give of the hidden manna, and I will give him a white token, and on the token a new name engraved, which no one knows but he that receives it.

Hath made

1 John 1:10
If we say that we have not sinned, we make him a liar, and his word is not in us.
John 3:33
He that receives his testimony has sealed that God is true.
John 5:38
and his word you have not continuing in you, for whom he has sent, him you believe not.
Hebrews 3:12
See, brothers, that there be not at any time in any one of you an evil mind of unbelief in departing from the living God;

General references

Hebrews 3:19
And we see that they could not enter in because of unbelief.