John Chrysostom
What are you saying? After saying so much about the gift of tongues, that it is unprofitable and superfluous if there is no interpreter, do you again command speaking in tongues?
I do not command it, he says, but neither do I forbid it. When he says, "If one of the unbelievers invites you, and you desire to go" (1 Cor 10:27), he does not command them to go, but neither does he restrain them.
So also here. "Let him speak to himself and to God." If you cannot be silent, he says, and if you are so ambitious and vainglorious, then speak to yourself.
By this permission he forbids all the more, because he puts him to shame. He does the same elsewhere when he speaks about relations with one's wife: "This is said because of your lack of self-control" (1 Cor 7:5-6).
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But he does not speak so about prophecy. How then? Imperatively and decisively: "If anyone speaks in an unknown tongue, let two speak, or at most three."
At the same time, he nowhere requires an interpreter and does not stop the mouth of the one prophesying. This differs from what he said there: "If there is no interpreter, let him keep silent."
One who speaks in tongues is insufficient by himself. Therefore, if someone has both gifts, let him speak. If he does not, but wishes to speak, let him do so with an interpreter.
The prophet also is an interpreter, but God's interpreter, while you are a human one. "But if there is no interpreter, let him keep silent." Nothing should be done in vain or from ambition.
"Let him speak to himself and to God," that is, in the mind, or secretly and without noise, if he wishes.
Here he does not command, but perhaps rather forbids through such permission. So also when he says, "If anyone is hungry, let him eat at home" (1 Cor 11:34), he seems to permit it, but by this he shames them more strongly.
You do not assemble, he says, in order to show that you have a gift, but in order to edify the hearers. As he also said at the beginning: "Let all things be for edification" (1 Cor 14:26).