2 Corinthians 11:4-5, 16-18

For if he that cometh preacheth another Jesus, whom we have not preached, or if ye receive another spirit, which ye have not received, or another gospel, which ye have not accepted, ye might well bear with him. For I suppose I was not a whit behind the very chiefest apostles.

I say again, Let no man think me a fool; if otherwise, yet as a fool receive me, that I may boast myself a little. That which I speak, I speak it not after the Lord, but as it were foolishly, in this confidence of boasting. Seeing that many glory after the flesh, I will glory also.