'Speaking In Tongues' in the Bible

for they heard them speaking in tongues and glorifying God. Then Peter said,

I wish all of you to speak in languages, but rather that you may prophesy; for greater is he prophesying than he speaking in tongues, unless he interpret so that the church may receive building up.

Now, brothers and sisters, if I come to you speaking in tongues, how will I help you unless I speak to you with a revelation or with knowledge or prophecy or teaching?

I thank my God, speaking in tongues more than you all:

So then, brothers and sisters, be eager to prophesy, and do not forbid anyone from speaking in tongues.