1 Corinthians 2:13

which things we also speak, not in words taught by human wisdom, but in those taught by the Spirit, combining spiritual thoughts with spiritual words.

1 Corinthians 1:17

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.

1 Corinthians 2:4

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

Luke 12:12

for the Holy Spirit will teach you in that very hour what you ought to say.”

Acts 2:4

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

1 Corinthians 2:1

And when I came to you, brethren, I did not come with superiority of speech or of wisdom, proclaiming to you the testimony of God.

1 Corinthians 2:14

But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised.

1 Corinthians 9:11

If we sowed spiritual things in you, is it too much if we reap material things from you?

1 Corinthians 10:3-5

and all ate the same spiritual food;

1 Corinthians 12:1-3

Now concerning spiritual gifts, brethren, I do not want you to be unaware.

1 Corinthians 14:2

For one who speaks in a tongue does not speak to men but to God; for no one understands, but in his spirit he speaks mysteries.

Ephesians 5:19

speaking to one another in psalms and hymns and spiritual songs, singing and making melody with your heart to the Lord;

Colossians 3:16

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

1 Peter 1:12

It was revealed to them that they were not serving themselves, but you, in these things which now have been announced to you through those who preached the gospel to you by the Holy Spirit sent from heaven—things into which angels long to look.

2 Peter 1:16

For we did not follow cleverly devised tales when we made known to you the power and coming of our Lord Jesus Christ, but we were eyewitnesses of His majesty.

Treasury of Scripture Knowledge

Summary

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

Bible References

Spiritual things

1 Corinthians 2:14
But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised.
1 Corinthians 9:11
If we sowed spiritual things in you, is it too much if we reap material things from you?
1 Corinthians 10:3
and all ate the same spiritual food;
Ephesians 5:19
speaking to one another in psalms and hymns and spiritual songs, singing and making melody with your heart to the Lord;
Colossians 3:16
Let the word of Christ richly dwell within you, with all wisdom teaching and admonishing one another with psalms and hymns and spiritual songs, singing with thankfulness in your hearts to God.