2 Corinthians 11:11-14 King James Version (KJV)
11 Wherefore? because I love you not? God knoweth.
12 But what I do, that I will do, that I may cut off occasion from them which desire occasion; that wherein they glory, they may be found even as we.
13 For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ.
14 And no marvel; for Satan himself is transformed into an angel of light.