It is possible for both a tongues speaker and a prophet to speak or abstain from speaking according to their own will. They are in control of their own gift.
When the Charismatic Movement clams that some new spectacular gift of the Spirit has been given to the church, and that those who receive this gift are led to do things that clearly show they are out of control, God’s people should not be deceived. This principle is enough to show that being slain in the spirit, drunk in the Spirit, or giving way to holy laughter, are phoney experiences that have nothing to do with the true gifts of the Spirit. They reduce the church to absurdity, and true believers should not be so gullible as to have any involvement in these things. That does not mean that they are immediately of the devil; even true believers can be deceived and led to generate such forms of behaviour out of their confused understanding. But this verse ought to correct and set people free from such foolish practices.