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]
17 For indeed you make the bracha well enough, but the other is not being edified.
18 Modeh Ani Hashem that I speak in leshonot more than all of you,
19 but in kehillah I want to speak five words with my sikhliyut (rationality), that also others I may instruct with a dvar hora'ah (word of teaching), rather than speak ten thousand words in a lashon (tongue).
20 Achim b'Moshiach, be not yeladim in your machsh'vot (thoughts); be infantile in kavvanah ra'ah (malice), perhaps, but in your binah, be mature. [YIRMEYAH 4:22]
21 In the Torah it stands written, KI BELA'AGEI SAFAH UVELASHON ACHERET YEDABER EL HAAM HAZEH...V'LO AVU SHMO'A ("Then with ones of foreign lip and with strange tongue he will speak to this people... but they were not willing to listen" --YESHAYAH 28:11-12), says the L-rd.
22 So then the leshonot (tongues) are for an ot (miraculous sign), not to the ones believing, the ma'aminim in Rebbe, Melech HaMoshiach, but an ot (miraculous sign) to the Apikorosim; but divrei hanevu'ah (words of prophecy) are not for the Apikorosim, but for the ones believing, the ma'aminim in Moshiach.