So the gift of speaking in other languages is a sign for unbelievers, not for believers. The gift of speaking what God has revealed is a sign for believers, not for unbelievers.
“These are the miraculous signs that will accompany believers: They will use the power and authority of my name to force demons out of people. They will speak new languages.
For example, a person must realize that those laws are not intended for people who have God’s approval. Laws are intended for lawbreakers and rebels, for ungodly people and sinners, for those who think nothing is holy or sacred, for those who kill their fathers, their mothers, or other people.