NET
5 in that our gospel did not come to you merely in words, but in power and in the Holy Spirit and with deep conviction (surely you recall the character we displayed when we came among you to help you).
Darby
5 For our glad tidings were not with you in word only, but also in power, and in [the] Holy Spirit, and in much assurance; even as ye know what we were among you for your sakes:
KJV
5 For our gospel came not unto you in word only, but also in power, and in the Holy Ghost, and in much assurance; as ye know what manner of men we were among you for your sake.