1 Corinthians 14:16

AUV(i) 16 For if you [ask God to] bless with your spirit [i.e., in a language supernaturally], how will the person there, who does not have the gift [i.e., of interpreting the language] be able to say, “May it be so,” when you offer [a prayer of] thanksgiving, since he does not know what you are saying?