Isaiah 37:6-10

6And Isaiah said unto them, Thus shall ye say to your master, Thus saith Jehovah, Be not afraid of the words that thou hast heard, wherewith the servants of the king of Assyria have blasphemed me. 7Behold, I will put a spirit in him, and he shall hear tidings, and shall return unto his own land; and I will cause him to fall by the sword in his own land.

8So Rabshakeh returned, and found the king of Assyria warring against Libnah; for he had heard that he was departed from Lachish. 9And he heard say concerning Tirhakah king of Ethiopia, He is come out to fight against thee. And when he heard it, he sent messengers to Hezekiah, saying, 10Thus shall ye speak to Hezekiah king of Judah, saying, Let not thy God in whom thou trustest deceive thee, saying, Jerusalem shall not be given into the hand of the king of Assyria.