John 1:20

He frankly admitted, and did not try at all to deny it; yes, he frankly admitted, "I am not the Christ."

Matthew 3:11-12

I am baptizing you in water to picture your repentance. But He that is coming after me is stronger than I am, and I am not fit to carry His shoes. He will baptize you in the Holy Spirit and in fire;

Mark 1:7-8

He kept preaching the following message, "After me there is coming One who is stronger than I am, whose shoes I am not fit to stoop down and untie.

Luke 3:15-17

Now while the people were on tiptoe in their expectations, and they were all arguing in their hearts about John whether he was himself the Christ,

John 3:28-36

You can bear testimony to me yourselves that I said, 'I am not the Christ, but I have been sent as His announcer.'

Treasury of Scripture Knowledge

Summary

And he confessed, and denied not; but confessed, I am not the Christ.

Bible References

General references

John 3:28
You can bear testimony to me yourselves that I said, 'I am not the Christ, but I have been sent as His announcer.'
Matthew 3:11
I am baptizing you in water to picture your repentance. But He that is coming after me is stronger than I am, and I am not fit to carry His shoes. He will baptize you in the Holy Spirit and in fire;
Mark 1:7
He kept preaching the following message, "After me there is coming One who is stronger than I am, whose shoes I am not fit to stoop down and untie.
Luke 3:15
Now while the people were on tiptoe in their expectations, and they were all arguing in their hearts about John whether he was himself the Christ,