Common misinterpretations treat these signs as mandatory proofs of individual salvation, causing believers to doubt their faith if they lack such experiences, or as exclusively for apostles, limiting God's ongoing power; others exploit them for sensationalism, fake miracles, or charismatic excesses, ignoring the contextual purpose of authenticating the apostolic message amid persecution rather than personal validation.
Mark 16:17
King James Version (1769)
17 And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;
This passage reveals Jesus' promise that miraculous signs will accompany true believers as confirmation of their faith and the gospel's power, specifically including casting out demons and speaking in new tongues, empowering the early church's witness during the Great Commission to spread the message worldwide.