NHEB(i)
21 In the law it is written, "By people of strange tongues and by the lips of strangers I will speak to this people; but even then they will not listen to me," says the Lord.
22 Therefore tongues are for a sign, not to those who believe, but to the unbelieving; but prophesying is for a sign, not to the unbelieving, but to those who believe.
23 If therefore the whole church is assembled together and all speak in tongues, and unlearned or unbelieving people come in, won't they say that you are crazy?