'Speech' in the Bible

For by him you have become rich in every way in speech and knowledge of every kind

For Christ did not send me to baptize, but to preach the gospel, not in cleverness of speech, so that the cross of Christ would not be made void.

And I, brethren, when I came to you, came not with excellency of speech or of wisdom, declaring unto you the testimony of God.

And my speech and my preaching was not with enticing words of man's wisdom, but in demonstration of the Spirit and of power:

But I will come to you shortly, if the Lord will, and will know, not the speech of them which are puffed up, but the power.

In the same way, unless you use your tongue for intelligible speech, how will what is spoken be known? For you will be speaking into the air.

But if I do not know the meaning of the language, I will [appear to] be a foreigner to the one who is speaking [since he knows exactly what he is saying], and the one who is speaking will [appear to] be a foreigner to me.