Else when you shall bless with the spirit, how shall he that occupies the place of the unlearned say Amen at your giving of thanks, seeing he understands not what you said?
All Commentaries on 1 Corinthians 14:16 Go To 1 Corinthians 14
George Leo Haydock
AD 1849
How shall he that holdeth the place of the unlearned (literally, an idiot) say Amen to thy blessing? When persons speak, or pray, and the ignorant have had no instruction concerning such prayers, they cannot know when to say Amen: and when infidels come into such meetings, where they hear many persons at once speaking many tongues, which are understood by no body, will they not be apt to say, you are mad? The like in a manner happened on the day of Pentecost, when the disciples having received this gift, and speaking with tongues, the people hearing them, cried out, they were drunk. (Acts ii. 13.) Yet St. Chrysostom takes notice, that the fault and madness was in the hearers, not in those who spoke tongues. (hom. xxxvi.) (Witham)
Amen. The unlearned not knowing that you are then blessing, will not be qualified to join with you by saying Amen to your blessing. The use or abuse of strange tongues, of which the apostle here speaks, does not regard the public liturgy of the Church, (in which strange tongues were never used) but certain conferences of the faithful, (ver. 26.) in which, meeting together, they discovered to one another their various miraculous gifts of the Spirit, common in those primitive times; amongst which the apostle prefers that of prophesying before that of speaking strange tongues, because it was more to the public edification. Where also note, that the Latin, used in our liturgy, is so far from being a strange or unknown tongue, that it is perhaps the best known tongue in the world. (Challoner)