'Speaking in tongues' is the most objective of the spiritual gifts and signs of God's new covenant in Christ because it requires interpretation and the possibility exists of multiple people receiving the interpretations which can corroborate each other. So very strong certainty is possible when this happens. It still needs faith but can introduce to us truths objectively as strongly as scripture. Scripture passages too can corroborate one another and this too gives the possibility of strong revelation. In my experience without these corroborations it could not be known that Jesus was with God creating the Universe of nature with Him since the very beginning of Creation. Just a few scriptures tell it - too few to be unambiguous enough for certainty. Tongues allows me personally to bridge the last gap in faith to understand this truth. That shows it provides very strong revelation on a par with science in its objectivity. Of course, if you happen to be blessed enough to be one of the recievers of the interpretation it gives additional secret possibility of certainty. You have an additional objective and subjective source of truth. You have an additional objective and subjective source of truth. With this power comes responsibility to believe the truth or you might be stealing the keys by being given the key to enter and not entering and so preventing others from entering. By believing the truth the receiver of the secret key needs to use it to enter then help others to enter.
