Romans 8:16
The Spirit itself is a co-witness with our spirits that we are children of God.
2 Corinthians 1:22
who has also sealed us and given us the pledge of the Spirit in our hearts.
2 Corinthians 5:5
And he that has made us for this is God, who has given us the pledge of the Spirit.
Ephesians 1:13
in whom also you, when you heard the word of truth, the gospel of your salvation, in whom also you having believed were sealed with the Holy Spirit of promise,
2 Corinthians 1:12
For this is our rejoicing; the testimony of our conscience that in purity and godly sincerity, not with a carnal wisdom, but with a divine grace, we have conducted ourselves in the world, and most abundantly towards you.
Ephesians 4:30
And grieve not the Holy Spirit of God, by which you were sealed to the day of redemption.
1 John 3:19-22
And by this we know that we are of the truth, and shall assure our hearts before him;
1 John 4:13
By this we know that we continue in him and he in us, that he has given us of his Spirit.
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.
Romans 8:23
and not only it, but we ourselves also who have the first fruit of the Spirit, even ourselves groan within ourselves, waiting for the adoption, the redemption of our bodies.
Romans 8:26
And in like manner also the Spirit helps our weakness. For we know not what to pray for as we ought, but the Spirit makes intercession for us with groanings unutterable;