'Words' in the Bible

For Christ sent me not to baptize, but to preach the Good News -- not in wisdom of words, so that the cross of Christ wouldn't be made void.

My speech and my preaching were not in persuasive words of human wisdom, but in demonstration of the Spirit and of power,

Which things also we speak, not in words which man's wisdom teaches, but which the Holy Spirit teaches, comparing spiritual things with spiritual things.

So also you, unless you uttered by the tongue words easy to understand, how would it be known what is spoken? For you would be speaking into the air.

However in the assembly I would rather speak five words with my understanding, that I might instruct others also, than ten thousand words in another language.