1 Corinthians 14:24

But if all prophesy [foretelling the future, speaking a new message from God to the people], and an unbeliever or outsider comes in, he is convicted [of his sins] by all, and he is called to account by all [because he can understand what is being said];

John 1:47-49

Jesus saw Nathanael coming toward Him, and said of him, “Here is an Israelite indeed [a true descendant of Jacob], in whom there is no guile nor deceit nor duplicity!”

John 4:29

“Come, see a man who told me all the things that I have done! Can this be the Christ (the Messiah, the Anointed)?”

Acts 2:37

Now when they heard this, they were cut to the heart [with remorse and anxiety], and they said to Peter and the rest of the apostles, “Brothers, what are we to do?”

1 Corinthians 2:15

But the spiritual man [the spiritually mature Christian] judges all things [questions, examines and applies what the Holy Spirit reveals], yet is himself judged by no one [the unbeliever cannot judge and understand the believer’s spiritual nature].

Hebrews 4:12-13

For the word of God is living and active and full of power [making it operative, energizing, and effective]. It is sharper than any two-edged sword, penetrating as far as the division of the soul and spirit [the completeness of a person], and of both joints and marrow [the deepest parts of our nature], exposing and judging the very thoughts and intentions of the heart.

Treasury of Scripture Knowledge

Summary

But if all prophesy, and there come in one that believeth not, or one unlearned, he is convinced of all, he is judged of all:

Bible References

He is convinced

1 Corinthians 2:15
But the spiritual man [the spiritually mature Christian] judges all things [questions, examines and applies what the Holy Spirit reveals], yet is himself judged by no one [the unbeliever cannot judge and understand the believer’s spiritual nature].
John 1:47
Jesus saw Nathanael coming toward Him, and said of him, “Here is an Israelite indeed [a true descendant of Jacob], in whom there is no guile nor deceit nor duplicity!”
John 4:29
“Come, see a man who told me all the things that I have done! Can this be the Christ (the Messiah, the Anointed)?”
Acts 2:37
Now when they heard this, they were cut to the heart [with remorse and anxiety], and they said to Peter and the rest of the apostles, “Brothers, what are we to do?”
Hebrews 4:12
For the word of God is living and active and full of power [making it operative, energizing, and effective]. It is sharper than any two-edged sword, penetrating as far as the division of the soul and spirit [the completeness of a person], and of both joints and marrow [the deepest parts of our nature], exposing and judging the very thoughts and intentions of the heart.

General references

Luke 4:32
and they were surprised [almost overwhelmed] at His teaching, because His message was [given] with authority and power and great ability.
John 4:29
“Come, see a man who told me all the things that I have done! Can this be the Christ (the Messiah, the Anointed)?”
1 Corinthians 12:7
But to each one is given the manifestation of the Spirit [the spiritual illumination and the enabling of the Holy Spirit] for the common good.
1 Thessalonians 5:20
Do not scorn or reject gifts of prophecy or prophecies [spoken revelations—words of instruction or exhortation or warning].