2 Corinthians 11:12-15
11:12 And what I am doing I will continue to do, so that I may eliminate any opportunity for those who want a chance to be regarded as our equals in the things they boast about.
11:13 For such people are false apostles, deceitful workers, disguising themselves as apostles of Christ.
11:14 And no wonder, for even Satan disguises himself as an angel of light.
11:15 Therefore it is not surprising his servants also disguise themselves as servants of righteousness, whose end will correspond to their actions.