'Speaking' in the Bible

Isn't he really speaking for our benefit? Yes, this was written for our benefit, because the one who plows should plow in hope, and the one who threshes should thresh in hope of sharing in the crop.

For this reason I want you to be aware that no one who is speaking by God's Spirit can say, "Jesus is cursed," and no one can say, "Jesus is Lord," except by the Holy Spirit.

For the person who speaks in a foreign language is not actually speaking to people but to God. Indeed, no one understands him, because he is talking about secrets by the Spirit.

Indeed, brothers, if I come to you speaking in foreign languages, what good will I be to you unless I speak to you in some revelation, knowledge, prophecy, or teaching?

Now if the whole church gathers in the same place and everyone is speaking in foreign languages, when uneducated people or unbelievers come in, they will say that you are out of your mind, won't they?

Therefore, my brothers, desire the ability to prophesy, and do not prevent others from speaking in foreign languages.