The parallel between "tongues" and "lips" indicates that "tongues" were foreign languages. There are many other indications in 1 Cor. 14 that "tongues" refers to foreign languages.
Usawa uliopo kati ya 'Ulimi’ na 'Midomo’ unaonyesha ya kwamba 'Ndimi’ zilikuwa ni lugha ngeni. vipo vionyesho vingi vingine katika 1 Kor. 14 vya kwamba "ndimi ni lugha ngeni.