Kehillah in Corinth I 14:16
16 Otherwise, if you make a bracha [in leshonot] with your neshamah, how will the am ha’aretz, who have no idea what you are saying, answer the "Omein"? [DEVARIM 27:15:26; DIVREY HAYAMIM ALEF 16:36; NECHEMYAH 8:6; TEHILLIM 106:48]
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