2 Corinthians 11:14 in the King James Version
And no marvel; for Satan himself is transformed into an angel of light.
Context
13 For such men are false apostles, deceitful workers, masquerading as Christ’s apostles.
14 And no wonder, for even Satan masquerades as an angel of light.
15 It is no great thing therefore if his servants also masquerade as servants of righteousness, whose end will be according to their works.