Galatians 1:11

For I make known to you, brethren, as touching the gospel which was preached by me, that it is not after man.

1 Corinthians 2:9-10

but as it is written, Things which eye saw not, and ear heard not, And which entered not into the heart of man, Whatsoever things God prepared for them that love him.

1 Corinthians 11:23

For I received of the Lord that which also I delivered unto you, that the Lord Jesus in the night in which he was betrayed took bread;

Romans 2:16

in the day when God shall judge the secrets of men, according to my gospel, by Jesus Christ.

1 Corinthians 15:1-3

Now I make known unto you brethren, the gospel which I preached unto you, which also ye received, wherein also ye stand,

Galatians 1:1

Paul, an apostle (not from men, neither through man, but through Jesus Christ, and God the Father, who raised him from the dead),

Ephesians 3:3-8

how that by revelation was made known unto me the mystery, as I wrote before in few words,

Treasury of Scripture Knowledge

Summary

But I certify you, brethren, that the gospel which was preached of me is not after man.

Bible References

That

Galatians 1:1
Paul, an apostle (not from men, neither through man, but through Jesus Christ, and God the Father, who raised him from the dead),
1 Corinthians 2:9
but as it is written, Things which eye saw not, and ear heard not, And which entered not into the heart of man, Whatsoever things God prepared for them that love him.
1 Corinthians 11:23
For I received of the Lord that which also I delivered unto you, that the Lord Jesus in the night in which he was betrayed took bread;
1 Corinthians 15:1
Now I make known unto you brethren, the gospel which I preached unto you, which also ye received, wherein also ye stand,
Ephesians 3:3
how that by revelation was made known unto me the mystery, as I wrote before in few words,

American Standard Version Public Domain