Bible Verses About Witness of the Holy Spirit: The faithful preaching of the Apostles accompanied by

My speech and my proclaiming were not in persuasive words of human wisdom, but in demonstration of the Spirit and of power,

and that our Good News came to you not in word only, but also in power, and in the Holy Spirit, and with much assurance. You know what kind of men we showed ourselves to be among you for your sake.