2 Corinthians 11:15KJV

13For such false apostles, deceitful workers, transforming themselves into the apostles of Christ.

14And no marvel; for Satan himself is transformed into an angel of light.

15Therefore no great thing if his ministers also be transformed as the ministers of righteousness; whose end shall be according to their works.

16I say again, Let no man think me a fool; if otherwise, yet as a fool receive me, that I may boast myself a little.

17That which I speak, I speak not after the Lord, but as it were foolishly, in this confidence of boasting.