Passage cross-references.

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

For Christ sent me not to baptize, but to preach the gospel: not with wisdom of words, lest the cross of Christ should be made of none effect.

But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

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

Now concerning spiritual gifts, brethren, I would not have you ignorant. …

Let the word of Christ dwell in you richly in all wisdom; teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord.

Unto whom it was revealed, that not unto themselves, but unto us they did minister the things, which are now reported unto you by them that have preached the gospel unto you with the Holy Ghost sent down from heaven; which things the angels desire to look into.

For the Holy Ghost shall teach you in the same hour what ye ought to say.

If we have sown unto you spiritual things, is it a great thing if we shall reap your carnal things?

And did all eat the same spiritual meat; …

For he that speaketh in an unknown tongue speaketh not unto men, but unto God: for no man understandeth him; howbeit in the spirit he speaketh mysteries.

Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;

For we have not followed cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty.

And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.