Romans 8:16
The Spirit himself bears witness with our spirit that we are children of God,
2 Corinthians 1:22
he has put his seal on us and given us his Spirit in our hearts as a guarantee.
2 Corinthians 5:5
Now he who has prepared us for this very thing is God, who also has given us the Spirit as a guarantee.
Ephesians 1:13
In him, you also have heard the word of truth, the gospel of your salvation. Having also believed, you were sealed in him with the promised Holy Spirit,
2 Corinthians 1:12
For our boast is this: the testimony of our conscience, that with holiness and godly sincerity, not in worldly wisdom but in the grace of God, we have conducted ourselves in the world, and still more toward you.
Ephesians 4:30
And do not grieve the Holy Spirit of God, in whom you were sealed for the day of redemption.
1 John 3:19-22
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 abide in him and he in us, because he has given us of his Spirit.
1 John 5:10
He who believes in the Son of God has the testimony in himself. He who does not believe God has made him a liar, because he has not believed in the testimony that God has given of his Son.
Romans 8:23
And not only the creation, but we ourselves, who have the firstfruits of the Spirit, groan inwardly as we wait eagerly for adoption as sons, the redemption of our bodies.
Romans 8:26
Likewise the Spirit helps us in our weakness; for we do not know what to pray for as we ought, but the Spirit himself intercedes for us with groans that words cannot express.