READ THIS AND TELL IF THIS IS THE SAME GIFTS OF TONGUES SPOKEN IN SOME CHURCHES / DOES IT PROVE PRETENDING?

Yes, this refers to the language of the heart, the language of genuine love and compion, the language that opens closed minds, heals spiritual blindness, heals spiritual leprosy, cures spiritual illnesses of all kinds and brings truth to receptive people. It's not some magic mumbo jumbo mumblings. It's ordinary spoken language like any other spoken words, however it is tempered by the genuine sincerity and love of the speaker. That's what makes it potent. Mothers speak these healing words to their children, lovers to their beloved, friends console friends, etc. They are simply words of genuine love and understanding that speak truth in a way that it can be heard and accepted.