Have you checked it and compared it to the law of the doctrine of tongues Isaiah 28. (the spiritual understand to the same spiritual unseen understanding (faith to faith) Or do you have another foundation for the law spoken of in 1 Corinthians 14:21-22. It confirm some foundation.
Where do you find that law referred to below?
Corinthians 14:21 In the law it is written, With men of other tongues and other lips will I speak unto this people; and yet for all that will they not hear me, saith the Lord.