Romans 8:16

The Spirit itself, beareth witness together with our spirit that we are children of God;

2 Corinthians 1:22

Who also hath sealed us, and given the earnest of the Spirit in our hearts.

2 Corinthians 5:5

Now, he that hath wrought us for this very thing, is, God, - who hath given unto us the earnest of the Spirit,

Ephesians 1:13

In whom, ye also - hearing the word of the truth, the glad-message of your salvation, - in whom also believing, - were sealed with the Spirit of the promise, the Holy Spirit ,

2 Corinthians 1:12

For, our boasting, is, this, - the witness of our conscience, that, in sanctity and sincerity of God, and not in fleshly wisdom, but in God's favour, have we behaved ourselves in the world, - and more abundantly towards you.

Ephesians 4:30

And be not grieving the Holy Spirit of God, wherewith ye have been sealed unto a day of redemption;

1 John 3:19-22

Hereby, shall we get to know, that, of the truth, we are, and, before him, shall persuade our heart;

1 John 4:13

Hereby, perceive we - that, in him, are we abiding, and, he, in us, - in that, of his Spirit, hath he given unto us.

1 John 5:10

He that believeth on the Son of God, hath the witness, within himself: He that doth not believe God, false, hath made him, - because he hath not believed on the witness which, God, hath witnessed, concerning his Son -

Romans 8:23

And, not only so, but, we ourselves, also, who have the first-fruit of the Spirit - weeven ourselves, within our own selves do sigh, - sonship ardently awaiting - the redeeming of our body; -

Romans 8:26

In the selfsame way moreover, even the Spirit, helpeth together in our weakness, - for, what we should pray for as we ought, we know not, but, the Spirit itself, maketh intercession with sighings unutterable,

Treasury of Scripture Knowledge

Summary

The Spirit itself beareth witness with our spirit, that we are the children of God:

General references

Bible References

Spirit

Romans 8:23
And, not only so, but, we ourselves, also, who have the first-fruit of the Spirit - weeven ourselves, within our own selves do sigh, - sonship ardently awaiting - the redeeming of our body; -
2 Corinthians 1:22
Who also hath sealed us, and given the earnest of the Spirit in our hearts.
2 Corinthians 5:5
Now, he that hath wrought us for this very thing, is, God, - who hath given unto us the earnest of the Spirit,
Ephesians 1:13
In whom, ye also - hearing the word of the truth, the glad-message of your salvation, - in whom also believing, - were sealed with the Spirit of the promise, the Holy Spirit ,
Ephesians 4:30
And be not grieving the Holy Spirit of God, wherewith ye have been sealed unto a day of redemption;
1 John 4:13
Hereby, perceive we - that, in him, are we abiding, and, he, in us, - in that, of his Spirit, hath he given unto us.

With our

2 Corinthians 1:12
For, our boasting, is, this, - the witness of our conscience, that, in sanctity and sincerity of God, and not in fleshly wisdom, but in God's favour, have we behaved ourselves in the world, - and more abundantly towards you.
1 John 3:19
Hereby, shall we get to know, that, of the truth, we are, and, before him, shall persuade our heart;
1 John 5:10
He that believeth on the Son of God, hath the witness, within himself: He that doth not believe God, false, hath made him, - because he hath not believed on the witness which, God, hath witnessed, concerning his Son -

General references

Galatians 3:26
For ye, all, are, sons of God, through the faith in Christ Jesus;