with an open letter
2 Kings 18:26-28
26
Then said Eliakim the son of Hilkiah, and Shebna and Joah, unto Rabshakeh, "Speak, I pray thee, to thy servants in the Syrian language, for we understand it; and talk not with us in the Jews' language in the ears of the people who are on the wall."
27
But Rabshakeh said unto them, "Hath my master sent me to thy master and to thee to speak these words? Hath he not sent me to the men who sit on the wall, that they may eat their own dung and drink their own urine with you?"
28
Then Rabshakeh stood and cried with a loud voice in the Jews' language and spoke, saying, "Hear the word of the great king, the king of Assyria!
2 Corinthians 2:11
lest Satan should get an advantage over us. For we are not ignorant of his devices.
2 Corinthians 11:13-15
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.
15
Therefore it is no great thing if his ministers also be transformed as the ministers of righteousness, whose end shall be according to their works.
Ephesians 6:11
Put on the whole armor of God, that ye may be able to stand against the wiles of the devil.
2 Thessalonians 2:10
and with all the deceit of unrighteousness in those who perish, because they received not the love of the truth, that they might be saved.