he who is speaking in an [unknown] tongue, himself doth edify, and he who is prophesying, an assembly doth edify;

in the law it hath been written, that, 'With other tongues and with other lips I will speak to this people, and not even so will they hear Me, saith the Lord;'

so that the tongues are for a sign, not to the believing, but to the unbelieving; and the prophesy [is] not for the unbelieving, but for the believing,