Prayerfully consider these words with me from 2 Corinthians 11. I'll quote verses 13-15, but I'd encourage you to grab your Bible and contextualize this!
"For such men are false apostles,
disguising themselves as apostles of Christ.
And no wonder, for even Satan disguises himself as an angel of light.
So it is no surprise if his servants, also, disguise themselves as servants of righteousness.
Their end will correspond to their deeds."